This archaeological museum in an 18th-century mansion showcases the country’s finest examples of pre-Columbian ceramics.

Home to thousands of dolls from around the world, including the "blue-eyed dolls" that came to Japan as American ambassadors.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Palace, temple, and pyramid ruins mark the ancient Mesoamerican capital of Totonacapan.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

This museum was once the home of industry titan Matilda Dodge Wilson.

The former home of the 11th president of the United States.

From grand battles to daily life, this Spanish museum offers a view of world history in miniature.

A Latvian rescuer who saved countless lives during World War II.

Kakadu National Park is known for its stunning beauty and its rock art, which represents the longest historical records of any continuous civilization on Earth.

The oldest building in Madrid.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

One of the best-preserved early 20th-century ore-processing mills in Nevada is maintained in a state of arrested decay.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

Gladiators once walked this ancient, subterranean passage.

Initially meant to immortalize the valor of the colonizer, this monument is now a symbol of Mauritanian resistance.

The highest concentration of petroglyph sites in Gold Butte National Monument, plus an improbable early 20th-century dam.

The magic of Spanish aviation housed under one roof.

Known as the "Traitor's Gate."

This 18th-century complex has served as a mosque, mausoleum, and one of the largest caravanserais in India.

In the palace with a thousand doors, not all of them are guaranteed to lead you somewhere new.

Dedicated to the man who saved hundreds of children from Nazi-occupied Czechoslovakia.

The monastery survived the Communist revolution in Mongolia as a religious museum.