The cluster of boulders near Fort Irwin is covered in military insignia.

The world's longest known cave system.

A Circus legend leaves an unexpected endowment.

This glass-stain Mary attracted thousands of pilgrims until her head was shattered by a vandal with a slingshot.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

Like Mardi Gras, only everyone's a pirate.

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

An abandoned theme park with a strange and tumultuous past.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

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

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

It's a pretty creepy lock-up.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The ancient tomb acts as a calendar that keeps perfect time.

The modern birthplace of Irish freedom.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

One of Ireland's most infamous prisons for rebels including men, women and children.

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