These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

A unique collection of Soviet military artifacts lies hidden away in a disused train, in the unrecognized Eastern European republic of Transnistria.

The plague quarantine island home to the alleged "Vampire of Venice."

Some cheeky plantings brighten an old slipway on Scotland's Firth of Forth.

This small museum in a 17th-century building honors three iconic Scottish writers.

A small literary museum remembers the life and works of the author of The Thirty-Nine Steps.

This series of Scottish caves has no clear purpose other than baffling historians.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

At high tide this strange footbridge appears to have no purpose whatsoever.

The small Scottish townhouse where the "Father of the National Parks" was born.