On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

An exhibition of preserved locomotives housed in a 1950s depot shows the history of Denmark's railway.

A model memorial to the original Odin Tower, the second highest tower in Europe before it was sabotaged by Danish Nazis.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

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

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Single runway interrupted by a busy road that cuts across its middle.

Denmark's famous pseudo-hill.

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

Ancient snack bar of the Roman Empire re-opened.

A Nesting Doll of Churches.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

The world's biggest floating museum in Gothenburg, Sweden.

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

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

Metro station with a claim to rock n' roll fame.

Cold war icon and onetime "hole" in the iron curtain.

Old Danish castle immortalized in Shakespeare's Hamlet.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

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