1

Beehives

Image: Meggyn Pomerleau

The first entry on the list goes to perhaps the most famous and finest example of animal architecture: the beehive. Built by incredibly industrious insects, beehives are among the most efficient structures in nature .

The regular hexagons provide the least-perimeter way to enclose infinitely many unit areas in the plane: the best way to separate the surface of their hives in equal parts all around, using the least possible total perimeter, thus reaching 100% efficiency in design.

2

Ant colony

Image: Morten Jakob Pedersen

If beehives aren’t the first thing that comes to mind when thinking about animal architecture, there’s a good chance you’re thinking of ant colonies.

Ants build the elaborate colony structure by hollowing out the area with their mandibles, grain by grain, without a blueprint, without a leader, and in total darkness . Unless the soil dries out dramatically, the chambers will keep their form.

3

Prairie dog town

Image: Moritz Kindler

These cute creatures excavate their homes by digging burrows into the ground, primarily in the Great Plains of North America. The region experiences extreme seasonal weather variations from season to season, requiring their homes to be built to withstand extreme temperatures, floods, and fires.

These underground "towns" have nursery rooms, pantries, living quarters, and temporary refuges —each smartly separated to serve a specific purpose.

4

Beaver dam

Image: Derek Otway

Another famous animal architect, the beaver, uses felled trees to build dams . These dams create still ponds where beavers can construct their winter homes, called lodges.

These creatures prepare for winter by covering their lodge with a fresh coat of mud, which hardens to create a barrier against the cold and predators.

5

Caddisfly larvae case

Image: Wolfgang Hasselmann

Caddisfly larvae construct protective cases using silk and whatever materials are available , such as sand, small stones, and plant debris.

These cases camouflage the larvae from predators and can be remarkably diverse in appearance, reflecting their creativity and resourcefulness.

6

Octopus den

Image: Serena Repice Lentini

It’s no secret that octopuses are incredibly intelligent animals, and their dens are proof of it. These clever mollusks use shells, stones, and even discarded human objects to reinforce their homes . Some species go a step further, decorating their dens with seaweed and other found materials.

7

Bagworm silk tent

Image: Maëva Vigier

Bagworms construct silk tents around themselves using bits of leaves, twigs, and other debris . These tents serve as mobile homes, providing protection as the insect feeds and grows.

Some species even camouflage their bags to blend into the environment, helping them avoid predators.

8

Osprey nest

Image: Jorge Coromina

Ospreys build massive nests in tall trees or on human-made structures near bodies of water. These nests are carefully constructed with sticks and lined with softer materials , creating a sturdy platform that can last for multiple breeding seasons.

9

Coral reef

Image: Hiroko Yoshii

Coral reefs are massive structures built by tiny coral polyps. These marine architects secrete calcium carbonate to form hard skeletons, gradually creating vast and complex habitats for a myriad of marine species. They are often referred to as the "rainforests of the sea" due to their biodiversity.

10

Spider web

Image: freestocks

Another famous architect from the animal kingdom, the spider, creates webs that serve as both homes and hunting tools . The silk used in these webs is incredibly strong, and different species produce a variety of designs, including sheets, orbs, and funnel shapes.

11

Swallow nest

Image: Tobias Arweiler

Swallows build cup-shaped nests that can house entire colonies , using mud pellets, usually attached to vertical surfaces like cliffs or man-made structures.

The construction is precise and stable, providing protection for their young against predators and environmental elements.

12

Burrowing owl burrow

Image: mana5280

As their name suggests, burrowing owls make their homes underground , often taking over burrows abandoned by prairie dogs or other mammals.

They use these subterranean homes to protect their young and hide from the heat of the day.

1

Appalachian Trail, Shenandoah National Park, Virginia

Image: Wes Hicks

Yes, the entire Appalachian Trail is extremely long. Actually, it is over 2,190 miles long. But, the Shenandoah National Park, 75 miles from Washington, D.C., has over 500 miles of hiking trails, including more than 100 miles of the Appalachian Trail ; You can tackle a small section in a day’s hike.

The park is the perfect place to explore the great outdoors in Virginia and it consists of 200,000 acres of protected land that are home to animals like deer and songbirds.

2

Burroughs Mountain Trail, Mount Rainier National Park, Washington

Image: Scott Longerbeam

More than 260 miles of maintained trails lead visitors through peaceful old-growth forests, river valleys, and subalpine meadows on the Mount Rainier National Park in Washington state.

The park is home to one of the most iconic mountains in the world: Mount Rainier rises 14,410 feet above sea level straight into the clouds. Check out the Burroughs Mountain Trail for stunning views of mountain peaks and the alpine landscape.

3

Rim Trail, Bryce Canyon National Park, Utah

Image: Tim Golder

Bryce Canyon National Park in Utah is home to the largest collection of odd-shaped pillars of rock left standing from the forces of erosion, known as hoodoos. Many of them can be viewed from the 5.5-mile Rim Trail .

The park also offers hikes for all levels, including backcountry options for those looking for a little added adventure and guided Full Moon Hikes for night-owl explorers.

4

Upper Emerald Pools Trail, Zion National Park, Utah

Image: Jamie Hagan

A park filled with hiking trails for all experience levels, Zion National Park, Utah's first national park , is famous for its massive cream, pink, and red sandstone cliffs, and freestanding arches.

Hikers should attempt to visit at sunrise and sunset to enjoy the breathtaking views of sunlight splashing off the cliffs and into the rivers below. And if it is an approachable trail they’re looking for, the Upper Emerald Pools Trail is an easy hike leading to sparkling waterfalls.

5

Grinnell Glacier Trail, Glacier National Park, Montana

Image: Aaron Clinard

Over 700 miles of hiking trails, including more than a dozen options around the Many Glacier area , like the popular Grinnell Glacier Trail , can be found at the Glacier National Park.

Lucky visitors can spot some of the park's varied wildlife, including 71 species of mammals, from the tiny pygmy shrew to one of the largest remaining grizzly bear populations in the country.

6

Charlies Bunion Hike, Great Smoky Mountains National Park, Tennessee and North Carolina

Image: Leslie Cross

The Great Smoky Mountains are world-renowned for its animal and plant life diversity, as well as for its miles of official and backcountry trails with views of waterfalls and old-growth forests.

The Great Smoky Mountains National Park spreads across two states and offers plenty of activities for hikers. For a particularly breathtaking vista, hike to Charlies Bunion, a popular outcropping along the Appalachian Trail.

7

Billy Goat Trail, Chesapeake and Ohio Canal National Historical Park, Maryland

Image: Eduardo Gutierrez

Considered a moderate-difficulty trail, Maryland's Billy Goat Trail has three sections totaling eight miles, though portions are strenuous and challenging . Outdoor enthusiasts can experience the raging Potomac River and the rocky crags of Great Falls. The hike is very popular, so early hours are advisable to beat the crowds.

8

Chautauqua Trail, Chautauqua Park, Colorado

Image: Leslie Cross

An old park, Chautauqua Park in Boulder, Colorado, has been around since 1898. The 80-acre park has miles of hiking, much of which are uphill . But there are less strenuous hikes, too, like the Chautauqua Trail, which offers views of the Flatiron mountains and Boulder.

9

Canyon to Rim Loop, Smith Rock State Park, Oregon

Image: Alex Diaz

Hikers of every level can find an appropriate trail at Smith Rock State Park, in Oregon. These vary in length and difficulty, but they all offer beautiful views of the Central Oregon landscape**.**

The park offers hundreds of miles of hiking and biking trails, and visitors may spot golden eagles, prairie falcons, river otters, and beavers throughout the day.

10

Petroglyph Wall Trail, Red Rock Canyon National Conservation Area, Nevada

Image: Kristin Melville

As visitors to the Red Rock Canyon National Conservation Area can testify, not all short-distance hikes are the same. Many are labeled difficult, and it can take four to five hours to complete a five-mile hike.

Along the different routes, desert wildlife can be spotted, including lizards, toads, and hawks. One of the park's most beginner-friendly hikes is the 0.2-mile Petroglyph Wall Trail , where centuries-old rock art can be appreciated.

1

Pacific Coast Highway

Image: Lance Anderson

We’ll begin this hypothetical trip of ours in California, and "The Golden State" offers an equally convenient and panoramic way to travel along its stunning coastlines. California State Route 1 is known by many names, such as Cabrillo Highway, Shoreline Highway, or Coast Highway, but it is perhaps best recognized as the "Pacific Coast Highway."

This state route crosses many iconic and gorgeous locations in California, including Big Sur, the San Francisco Bay Area, and the Monterey Bay Area. Beyond its scenic beauty, the Highway is a pop culture icon in its own right, referenced in songs by bands like the Beach Boys and the Decemberists.

2

Yosemite

Image: Jordi Vich Navarro

Yosemite truly needs no introduction. This iconic national park spans 759,620 acres across four California counties, with nearly 95% of its total area designated as wilderness.

From its stunning giant sequoia trees to its breathtaking waterfalls, granite cliffs, and pristine streams, the park offers something for everyone. Yosemite is a quintessential example of the natural beauty America has to offer.

3

Red Rock Canyon State Park

Image: Kristen P

Since we’re still on the California portion of our fictional road trip, let’s make a quick stop at another natural treasure. Red Rock Canyon State Park is renowned worldwide for its stunning rock formations and its arid yet strikingly beautiful scenery.

While the weather is definitively drier than in other parts of California, don’t think for a moment that nature is absent in Red Rock Canyon. In fact, this park is home to the rare Red Rock Canyon monkeyflower, a unique flower found exclusively in this region.

4

California’s Lost Coast

Image: Paulius Dragunas

Last but certainly not least on the California leg of our trip is the stunning region known as the "Lost Coast." Situated in Humboldt and Mendocino counties, this area earned its name because it remains largely natural and undeveloped, the product of a surge in depopulation in the 1930s.

While the inaccessibility of the area is definitively a hurdle—its steep terrain makes establishing roads difficult—we highly recommend it to those adventurous enough to explore on foot. Its pristine, unspoiled landscapes are truly a sight to behold.

5

Willamette Valley

Image: Dan Meyers

Let’s now step into the wonderful state of Oregon to continue our fictional journey. What better place to start our tour through the "Beaver State" than through the beauty of Willamette Valley ? While this region is undeniably vast—stretching 150 miles and encompassing Oregon’s five largest cities—we’d like to highlight a few features that truly make this valley a beautiful area.

Driving through this predominantly agricultural landscape, publicized in the 1820s as a "promised land of flowing milk and honey," means running across rather scenic and bountiful sights. Trust us: watching the golden grapevines shimmer in the autumn sun is just one of the many experiences that make Willamette Valley so magical.

6

Oregon Coast

Image: Kevin Butz

The Oregon Coast not only offers unparalleled and gorgeous sights of the Pacific Ocean, but it's also a unique and massive area that encompasses more than 25 cities, lush landscapes, and a rich variety of birds, marine life, and other wildlife.

As you would expect, the many wonders of this area make the Oregon Coast a popular tourist destination. Those looking for adrenaline-fueled activities may be interested in surfing or sandboarding, while some history buffs might find intrigue in historic landmarks such as Fort Clatsop, Battle Rock, and Oregon’s many lighthouses.

7

Olympic National Park

Image: Georg Eiermann

Now that the route has taken us to the state of Washington, why not visit Olympic National Park and its gorgeous sights? Originally designated as Mount Olympus National Monument by President Theodore Roosevelt, this park is divided into four distinct regions, each hosting three unique ecosystems.

Due to its amazing variety, a single entry could never encompass all the natural wonders this park has to offer. However, we can highlight a few favorites: for instance, Mount Olympus, the tallest peak in the Olympic Mountains, or the Hoh Rainforest, renowned for its stunning Bigleaf maples.

8

The San Juan Islands

Image: David Lang

The San Juan Islands is a four-island archipelago at the border between Washington State and the Canadian province of British Columbia. The Islands are considered the go-to place for birdwatching enthusiasts, boasting the highest concentration of bald eagles in the contiguous United States.

If bird-watching is not your thing, don’t worry—there’s plenty more to see and do on these breathtaking islands. Several ferry tours offer access to some of the best panoramic views of the region, which, as you might imagine, are nothing short of stunning.

9

Denali National Park

Image: Bryson Beaver

We’ve now arrived in the final state of our West Coast road trip. In that sense, what better place to conclude our journey than the "Last Frontier"? With that in mind, let’s begin our exploration of Alaska with what many consider to be the state’s crown jewel: Denali National Park.

Denali holds the distinction of being the highest peak in North America, and while this is truly no small feat, that’s not what makes this area so special. This mountain’s immense size is rivaled only by its breathtaking magnificence. Denali is renowned for its stunning glaciers, lush forests, and diverse wildlife, which includes brown bears, beavers, and Arctic foxes.

10

Kenai Fjords National Park

Image: Kedar Gadge

Kenai Fjords National Park’s beauty is as stunning as it is diverse. Its landscapes are marked by truly unique and stunning features, such as glaciers, islands, and fjords. In addition to its remarkable terrain, the park is home to a wide variety of wildlife, including bald eagles, black bears, and sea otters.

Designated by President Carter in 1978, the park is primarily visited by cruise ships and tour boats. Thousands of visitors are awestruck each day by the grandeur of Kenai Fjords, including the famous Exit Glacier, which is located at the end of the park’s only road.