Picturesque UNESCO World Heritage Sites in the US

by Noreen Kompanik
Last updated: 11:00 AM ET, Sun November 2, 2025

A UNESCO World Heritage Site is selected for places that possess outstanding universal value for humanity in terms or cultural, historical, scientific or natural significance. They are also designated for protection and preservation under international treaties.

As of October 2025, a total of 1,248 UNESCO World Heritage Sites are located across 170 countries. Some of the most popular and well-known include the Great Barrier Reef, Pyramids of Egypt and the Taj Mahal.

The U.S. boasts 26 sites, some whose beauty and majesty are awe-inspiring and incredibly picturesque. Here are some of our favorites.

Everglades National Park

These fascinating and vast flat wetlands in southern Florida represent one of the most unique and ecologically important parks in the U.S. Covering almost 1.5 million acres, the area’s habitats include three different colored mangrove forests, tropical hardwood hammocks, pine rocklands, fresh and saltwater marshes and seagrass beds.

The area is also home to the manatee, Florida panther, great egret, Roseate Spoonbills, and alligator and crocodile (one of the only places in the world where both exist). The best way to explore the region is by airboat rides, popular just outside the national park boundaries.

Glacier Bay

This natural park and preserve is one of Alaska’s most spectacular natural treasures comprised of glaciers, fjords, mountains and wildlife. The area was shaped by eons of glacial and continuous tectonic activity and is known for its dramatic calving (huge pieces of ice falling into the sea).

Located near Juneau, Glacier Bay measures almost 3.3 million acres and is part of the Glacier Bay–Wrangell–St. Elias–Kluane–Tatshenshini-Alsek World Heritage Site — the world’s largest non-polar ice field and one of the largest protected wilderness areas on the planet.

Glacier National Park

Part of the Waterton-Glacier International Peace Park that includes Waterton in Canada and Glacier National Park in Montana, the U.S. site is defined by its dramatic Rocky Mountain scenery, glacially carved valleys and crystal-clear alpine lakes.

The famous Continental Divide runs right through the park, splitting waters that flow to the Pacific from those flowing to the Atlantic. Mountain peaks exceed 10,000 feet, and common wildlife include Grizzly bears, black bears, mountain goats, bighorn sheep, moose, elk, wolverines, lynx and over 270 bird species.

Saint Mary Lake, Glacier National Park, Montana.

Grand Canyon

The famous Grand Canyon in Arizona was recognized as a UNESCO World Heritage Site in 1979 and is known for its breathtaking vistas and geological significance. Carved out by the Colorado River, The Grand Canyon’s layers can be traced back nearly two billion years.

As one of the most iconic natural wonders in the U.S., the Grand Canyon attracts millions of visitors each year who come to hike its scenic rim trails, raft the rushing Colorado River, explore its ecosystems, or simply take in the sweeping views.

Great Smoky Mountains National Park

There’s a reason this area is known as the Great Smokies given the natural blue-gray mist that hangs over the mountains and valleys giving them a smoky appearance. The Native American Cherokee named the region ‘Shaconage’, meaning ‘Place of the Blue Smoke.’

One of the most visited national parks in the U.S., it straddles the border between North Carolina and Tennessee, in the heart of the Southern Appalachian Mountains. The Great Smokies feature steep picturesque valleys, stunning waterfalls, rolling ridges, and peaks above 6,000 feet including Clingman’s Dome, the park’s highest.

Hawaii Volcanoes National Park

Located on the Big Island of Hawaii, the park, extending from sea level to 13,680 feet includes the summits of two of the world’s most active volcanoes, Mauna Loa and Kīlauea.

The park is roughly 335,000 acres, though is constantly expanding due to new land formed by Kīlauea’s lava flows. The Halemaʻumaʻu Crater, within the Kīlauea’s summit caldera, is a sacred site in Hawaiian tradition — believed to be the home of Pele, the Hawaiian goddess of fire and volcanoes. Visitors can witness fresh lava flows, craters, steam vents, lava tubes and cooled lava fields.

Mammoth Cave National Park

The longest cave system in the world is located in central Kentucky and features 426 miles of mapped passageways that are still growing as new sections are explored. The cave was carved out of Mississippian limestone by the Green River and its tributaries over millions of years.

This underground system includes vast chambers, tight crawl spaces, underground rivers and striking geological formations like stalactites, stalagmites and gypsum flowers. Easy walks to more intensive wild cave spelunking tours are available for advance booking.

Mesa Verde

The Mesa Verde plateau in southwestern Colorado is one of the most remarkable archeological preserves in the U.S., once occupied by the ancient Pueblo people between the 6^th and 12^th centuries.

Thousands of carefully engineered Ancestral Puebloan cliff dwellings and archeological sites at this historic site offer an extraordinary snapshot into the lives of the people who lived here for over 700 years.

Olympic National Park

One of the most ecologically diverse parks in the U.S., Olympic National Park located in northwestern Washington State includes a rugged undeveloped coastline, a lush and enchanting temperate rain forest, picturesque alpine mountains and glacier-capped peaks, all within the same protected area and within a day’s drive of one another.

The impressive diversity throughout the park’s 922,000 acres makes it feel as though you’re visiting three separate and unique parks in one.

Taos Pueblo

One of the most unforgettable UNESCO Heritage Sites is Taos Pueblo in New Mexico. Ringed by the soaring peaks and sagebrush plains of the Sangre de Cristo Mountains, this authentic Native American community with no electricity or running water has been continuously inhabited for over 1,000 years. The ancient Tiwa language is still spoken here.

The largest of the Pueblos was established along the Rio Grande and its headwaters in the late 13^th and early 14^th centuries. Taos Pueblo is renowned for its multi-story adobe structures built entirely from earth, straw, and water, and then coated with a smooth layer of mud plaster.

Yellowstone

Designated as the world’s first national park in 1872, Yellowstone covers almost 3,500 square miles throughout Wyoming and parts of Montana and Idaho. Geothermal features include over 300 geysers, hot springs, canyons, waterfalls, mud pots and fumaroles.

One of the most spectacular of the UNESCO Heritage Sites in the U.S., Yellowstone sits atop a massive volcanic caldera, one of the largest active volcanic systems on Earth. The magma chamber below the park still fuels over 10,000 hydrothermal features making the area the world’s most concentrated area of geysers and hot springs. Old Faithful, the park’s icon erupts every 90 minutes, shooting water up to 130 feet in the air. Grand Prismatic Spring, the largest hot spring in the U.S. is renowned for its surreal rainbow colors and Mammoth Hot Springs’ terraced limestone formations resemble frozen waterfalls.

Yosemite National Park

Located in California’s Sierra Nevada mountains, the stunning park is known for its granite cliffs (El Capitan and Half Dome), waterfalls, giant sequoias and picturesque valleys, making it a bucket-list destination for photographers, nature lovers, hikers and climbers.

Yosemite Falls is one of North America’s tallest cascades at 2,425 feet, signature Bridalveil Falls can be seen at the valley entrance, and located along the Mist Trail, Vernal & Nevada Falls can be accessed by a hike. Some of the park’s giant sequoias are over 3,000 years old and among the largest living things on Earth.

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