A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

The world's first motorway was used as a racetrack until the late 1990s.

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.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

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.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

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 site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

The most visited, and possibly most controversial, museum in Germany.

Venice's island of the dead.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Pilgrimage site for star-crossed lovers.

The United States' oldest Episcopal church still in active use.

This one-room schoolhouse played a significant role in the education of Black children for almost 100 years.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.