Monasteries on rock pillars, once accessible only by frayed ropes.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

At a museum of everyday objects, it is the act of collecting that is really on display.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

The only castle in North America to ever house European sovereigns.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

66,000 pieces of art, donated by one of the world's richest men.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Part bookstore, part café, and part forest.

Frida Kahlo's childhood home, now a museum of her life and works.

The former home of the famed revolutionary Pancho Villa is now a museum in his honor.

Accessible only by train, the beauty of Agawa Canyon Wilderness Park is worth the journey.

A schooner, nicknamed "The Unsinkable," with a long history of survival in the Indian Ocean.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

Radical Bookstore and Community Space.

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

The homestead of American patriot John Adams.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.