Abandoned limestone cave was once a sacred place of worship.

This mysteriously shaped boulder may have been used for human sacrifice in ancient times.

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

Roman ruins top white travertine terraces formed by ancient hot springs.

Bridge that died in war and was resurected.

The only known mosaic depicting the Greek god of sleep, Hypnos.

A curious cave church carved into the face of a cliff.

A tiny church on a man-made island in the Adriatic.

This one-time health resort was used by aristocrats around the world.

A small part of Russia that does not touch any other part of Russia.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

The world's oldest model village.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

Giant naked man on a hillside.

Each spring this woodland floor is carpeted with purplish flowers as far as the eye can see.

Home to the most complete dodo remains known - one head, and one foot.

This antique prison is a tourist attraction with a sordid past.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.