The world's northernmost ice hotel.

This unusual rock formation looks like an apple that has been neatly sliced in half.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

It's good luck to be mocked by this monkey.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

Crop circles inspired this whimsical garden in Germany.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

This enchanting hill is home to fairy lore and a sinister local mystery.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

A tiny collection of traditional Japanese woodblock prints, open only when the owner feels like it.

This 2,000-year-old tree inspired the nursery rhyme "Rock-a-bye Baby."

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

A comprehensive collection of Pez dispensers.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

Norway has built what may be the world's most beautiful public toilet.

Hot springs monkey spa in the middle of Hell's Valley.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

A stunning two-story timepiece within a medieval Brick Gothic church.