The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This shop specializes in oddities and Victorian-inspired wonders.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The site of the climactic scene from the classic horror film is now a historic landmark.

The world's longest known cave system.

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

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

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A castle that was built stone by stone by an eccentric journalist.

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

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

The first declared National Monument in the United States.

A snapshot of the city's fascinating voodoo culture.

World's largest collection of serial killer artwork and other macabre exhibits.

Most-visited and most-photographed slot canyon in the American Southwest.

The rocks in this arid basin leave trails of movement behind them.

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

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Ghost town with a beer-drinking goat for mayor.

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