This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

Town of spiritualists and mediums in Florida.

A haunted hill that supposedly defied gravity.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

Hauntingly beautiful totem poles left by the Haida.

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

These stairs were built to accommodate royals mounted on elephants.

A mysterious castle built as a monument to lost love.

The artwork immortalizes one of 20th-century Ireland's leading creatives.

No one messes with the Massachusetts sacred cod, not this time...

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

These remarkable cascades are the jewels of Upper Tees.

Twelve natural mummies are displayed in the crypt of this former monastery school.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

A remarkable medieval structure born from a 14th-century disaster.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

Even Henry David Thoreau found this glacial pothole irresistible.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

This 700-year-old street food market features baby octopus and soy donuts.