A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

An abandoned desert hamlet swallowed up by sand.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

The world's largest underground iron ore mine.

The English bed-and-breakfast believed to have inspired Emily Brontë's novel "Wuthering Heights."

This Bronze Age burial mound used to be called "Robin Hood’s Piss-Pot" until it was renamed by spoilsport Victorians.

This Old West prison built into the side of a cliff was said to be inescapable.

This 700-year-old storehouse was a POW jail, aviation workshop, and Titanic memorial before becoming a brewpub.

Abandoned for over a century, this chilling train tunnel is now a destination for ghost hunters.

This glacier interpretation center houses the world’s only bar made completely from glacial ice.

This historic sunny-yellow building has an unfortunate connection to the sinking of the Titanic.

A surprisingly beautiful abandoned World War II military base in East Greenland.

A giant interactive periodic table with real samples of the elements.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

A unique zoological park home to over 30 species of wild cats, both big and small.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

This serene wooded hilltop has a dark history as the climactic point of the Swedish witch trials.

A magnificent place to see authentic paleolithic cave paintings that are an astounding 33,000 years old.

A storybook church made from a mesmerizing medley of multi-colored stones.

This memorial to local World War II heroes is slowly being reclaimed by nature.

One of the few surviving examples of Victorian-era public toilets now houses a small homestay.