In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

This monumental work of art symbolizes the coming together of a previously divided city.

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

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

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

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

One of downtown Berlin's last reminders of its Communist past.

A fascinating insight into daily life in the Eastern Bloc.

A remarkable cabinet of curiosities in an art space in the center of Berlin.

The natural mummy of the less than chivalrous Knight Kahlbutz.

One of the most iconic neon ads of former East Germany.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The world's largest drain sits below the city of Kasukabe, Japan.

A rare festival blending religion, blacksmiths, vagina dentata, sex workers, and the straight-up facts of life.

Meet the world's longest tapeworm in a collection that really gets under your skin.

Starship-temple contains 400 tons of drinking water and offers free Japanese lessons.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.