The world's longest and deepest train tunnel.

Video games, body language, and postal history are all on display in this Swiss museum.

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

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

These spooky and unusual stone formations create an underworldly landscape.

Caves famous for the dragon-slaying saint who lived there.

Denmark's famous pseudo-hill.

Danish observation tower designed to look like a giant beer bottle.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

Nordic giants resurrected from the sea and restored to their former greatness.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Natural history museum displaying a famous taxidermied St. Bernard.

The bears of Bern have been a city highlight for over 500 years.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

Preserved "bog person" that is over 2,000 years old.