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

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

A towering monument to war, located on a beautifully peaceful hill.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Reminders of the Battle of Berlin still scar the railway.

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

One of the world's heaviest musical instruments towers within a popular urban park.

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

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

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

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

The final resting place of many of Germany's most famous communists.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

Tiny memorials honor individual victims of the Holocaust.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

A brush maker used his factory to protect blind Jews from the Gestapo.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

This curious sculpture represents the perseverance needed to take to the skies.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

The mummified relic of St. Catherine sits forever on a golden throne.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A modern sliver of architecture in Roma.