A mysterious inscription may hold a clue about the "Lost Colony" of Roanoke.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

Mysterious glowing orbs float through the desert night.

Minimalist modern art on a repurposed military base in rural Texas.

The ship that got left behind.

This innocuous-looking button may have been used to assassinate a king.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

A former connection to City Island, it has been abandoned since the 1930s.

Small monoliths of several varieties of stone sit alongside a wooded path in the Bronx.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

The famous author's cottage hideaway.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Beauty and history abound in this remote West Texas canyon.

The 19th-century ruins hide deep in an overgrown forest.

In the late 1990s, a mechanic and fan bought this iconic sportscar back from the dead.

The pit stop from "The Texas Chainsaw Massacre" now serves beef and pork barbecue, not people.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

The Grand Canyon of Texas.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

The last of its kind in the country.