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Hurricane Ridge in Olympic National Park in Washington
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The USA is home to 24 of the 1,121 UNESCO World Heritage Sites across the globe.

These sites are designated for their universal value in natural or cultural heritage and are places as unique and diverse as East Africa’s Serengeti, the Pyramids of Egypt, the Great Barrier Reef in Australia and the Grand Canyon in the USA. "World Heritage Sites represent an incredible opportunity for the United States to tell the world the whole story of America and the remarkable diversity of our people and beauty of our land,” former Secretary of the Interior Sally Jewell commented after nominating the San Antonio Missions National Historic Park as a World Heritage Site in 2014. “The San Antonio Missions represents a vital part of our nation’s Latino heritage and the contributions of Latinos to the building of our country.”

Cahokia Mounds State Historic Site, Illinois

Designated a World Heritage Site in 1982

Cahokia was a city like no other at its time. Mississipians who lived here built a variety of structures – from practical homes for everyday living to monumental public works – that have maintained their grandeur for centuries. The site offers an interpretive center, outdoor self-guided and guided tours, and amenities to keep you fueled for a full day of discovery.

The towering Cahokia Mounds State Historic Site

The towering Cahokia Mounds State Historic Site
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Carlsbad Caverns National Park, New Mexico

Designated a World Heritage Site in 1995

Beneath this rugged land of rocky slopes and canyons, cactus, grass, thorny shrubs and the occasional tree in Carlsbad Caverns National Park are more than 118 known caves – all formed when sulfuric acid dissolved the surrounding limestone. Carlsbad Cavern is one cave in a fossil reef laid down by an inland sea 250 to 280 million years ago.

Amazing underground formations inside Carlsbad Cavern

Amazing underground formations inside Carlsbad Cavern
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Chaco Culture National Historical Park, New Mexico

Designated a World Heritage Site in 1987

This complex collection of monumental public and ceremonial buildings are testament that their builders had a sophisticated understanding of astronomical phenomena. Visitors to this area may get a deeper sense of life and the connection to people who lived here from about 850 to 1250 by exploring Chaco through guided tours, hiking and biking trails, evening campfire talks and night sky programs.

Some of the incredible structures at Chaco Culture National Historical Park

Some of the incredible structures at Chaco Culture National Historical Park
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Everglades National Park, Florida

Designated a World Heritage Site in 1979

The largest subtropical wilderness in the USA, the 1.5 million-acre Everglades National Park provides important habitat for numerous rare and endangered species, including the manatee, the American crocodile and the elusive Florida panther. Camping, boating, fishing, hiking, bird watching and ranger-guided programs are just a sampling of the activities popular in the Everglades.

The Florida Everglades, known as the "River of Grass"

The Florida Everglades, known as the "River of Grass"
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La Fortaleza and San Juan National Historic Site, Puerto Rico

Designated a World Heritage Site in 1983

This massive fortification of San Juan features the La Fortaleza, the three forts of San Felipe del Morro, San Cristóbal and San Juan de la Cruz. There is also a large portion of the City Wall, built between the 16th and 19th centuries to protect the city and the Bay of San Juan. Visitors to this historic site can join a rangers’ presentation, explore the fortifications, see a video program, and relax and enjoy this attraction in Puerto Rico

The imposing Castillo San Felipe del Morro, part of San Juan National Historic Site

The imposing Castillo San Felipe del Morro, part of San Juan National Historic Site
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Frank Lloyd Wright Architecture, Multiple States

Designated a World Heritage Site in 2019

This series of eight Frank Lloyd Wright-designed buildings recognizes the famed architect’s influence on modern design in both the USA and Europe. The sites included in the UNESCO designation are: Fallingwater in Mill Run, Pennsylvania; Unity Temple in Oak Park, Illinois; the Frederick C. Robie House in Chicago, Illinois; Taliesin in Spring Green, Wisconsin; the Herbert and Katherine Jacobs House in Madison, Wisconsin; Hollyhock House in Los Angeles, California; Taliesin West in Scottsdale, Arizona; and the Solomon R. Guggenheim Museum in New York City, New York.

Exterior of Taliesin, Frank Lloyd Wright’s estate in Spring Green, Wisconsin

Exterior of Taliesin, Frank Lloyd Wright’s estate in Spring Green, Wisconsin
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Glacier and Waterton Lakes National Parks, Montana and Canada

Designated a World Heritage Site in 1995

In 1932, Waterton Lakes National Park in Alberta, Canada, was combined with Glacier National Park in Montana, USA, to form the world’s first International Peace Park. Experience the pristine forest, alpine meadows, rugged mountains and spectacular lakes of this area. More than 1,125 kilometers of trails also offer a hiker’s paradise across this dramatic and breathtaking landscape. Plenty of helpful information is available on the park’s site as you plan a trip to this stunning alpine landscape.

Hiking the Highline Trail in Glacier National Park

Hiking the Highline Trail in Glacier National Park
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Grand Canyon National Park, Arizona

Designated a World Heritage Site in 1979

The Grand Canyon has been referred to as one of the Seven Natural Wonders of the World and is being formed even today by the Colorado River, which charted its course about 17 million years ago. Unique combinations of geologic color and erosional forms decorate a canyon that is 446 kilometers long, up to 29 kilometers wide and 1.6 kilometers deep. With nearly 5 million people traveling to the Grand Canyon National Park each year, visitors are encouraged to review the many options on how and where to access this magnificent canyon.

Grand Canyon National Park, one of the Seven Natural Wonders of the World

Grand Canyon National Park, one of the Seven Natural Wonders of the World
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Great Smoky Mountains National Park, Tennessee and North Carolina

Designated a World Heritage Site in 1983

The USA's most-visited national park, the Great Smoky Mountains, features exceptional natural beauty, is home to more than 3,500 plant species and is relatively untouched by human influence. Auto tours, cycling and hiking trails, camping, fishing and best of all, sightseeing, are some of activities that allow visitors to experience this amazing place.

Clingman’s Dome on the Appalahian Trail in Great Smoky Mountains National Park