A remarkable geological formation resembling a forest made of stone.

An unexpected desert oasis in South America.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This giant Christ took first place in South America's religious arms race.

An ancient Incan convent on Lake Titicaca's Island of the Moon.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

This chimerical bridge/tunnel appears to dead end right into the sea.

The former home of Norway's greatest romantic composer.

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

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

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Home to three historic ships from the age of Vikings.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

Pilgrimage site for star-crossed lovers.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

Baroque celebration of the end of the Great Plague of Vienna.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.