Countless grotesque faces stare out from this eerie Prague art wall.

A Baroque mansion with ties to legendary magicians and alchemists.

Macabre astrological automaton clock dating to the late 1400s.

Celebrating the works of a beloved Italian actor, known for such cult films as 'They Call Me Trinity' and 'Watch Out, We’re Mad!'

A historic fire call point.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

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

A restaurant and observation deck built in a unique broadcasting antenna.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

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

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

Model Trains and Much More in Hamburg.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Commemorating the spot where the famous scientist fed his pigeons.

Cryptic messages embedded in the New York City sidewalk.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Fossils, railroads, and waterfalls!

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

Hamburgers are intensely proud of their tunnel beneath the river.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.