This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Australia's largest medical museum featuring a 19th-century pharmacy.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

This historic tall ship traveled 1.5 million miles around the globe, and once did duty as the mythical pirate ship in Peter Pan.

A colorful street named for the legendary Australian rock band.

Not the result of an accident, hurricane, or aliens, this is an eye-popping tribute to the Melbourne tram.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

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

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

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

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

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

Started as a kitchen garden, now the second largest botanical garden in the world.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

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

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

Blitzkrieg bop your way through Berlin's Ramones Museum.

Notorious artist squat renovated into legal studios.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.