This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Read a book next to a Midtown waterfall.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Odd outsider art installations surround a Gold Rush-era ghost town.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

A semi-scholarly approach to sex.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The final resting place of New Orleans' most famous voodoo priestess.

The United States Capitol's former columns still stand.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Dramatic river bend surrounds a natural red-rocked pedestal.

A snapshot of the city's fascinating voodoo culture.

World's first "penitentiary," meant to be humane, drove men insane.