The largest stretch of the Berlin Wall is right on top of the former SS headquarters

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

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

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

Likely the world’s only place where you’re meant to skate on top of cars.

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.

Tiny memorials honor individual victims of the Holocaust.

A monument to the man who almost killed Hitler.

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Copenhagen's celebrated theme park and gardens.

Hans Christian Andersen for the postmodern world.

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

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.

A gift from Emperor Franz Joseph I to his wife.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Be(w)ar(e) the moat around this historic Czech castle.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

The world's largest wooden structure.

An eerie collection of the surviving structures from a past celebration of the future.

Get in line for Lisbon’s most famous sandwich.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.