The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

700 iron sculptures crammed into a Mediterranean park.

The home where the famous astrologer wrote some of his most telling prophecies.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

This massive library holds what was once the largest book collection in the world.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This fascinating abbey is considered the oldest monastery in the region.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

This massive and eclectic collection is filled with thousands of sculptures, masks, and assemblages.

One of the greatest maze designer’s greatest mazes.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

A 30-acre garden inspired by the principles of modern physics.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Puzzles within puzzles hide a golden treasure in this hedge maze.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.