One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

Under Hanoi’s medieval citadel sits a secret military headquarters from the final years of the Vietnam War.

A gift from the Soviet Union in the 1980s, this is the only statue of the Soviet dictator in Southeast Asia.

Walk through a clothing store, across a courtyard, and up several flights of stairs for delicious coffee with a side of beautiful views.

The cutest shrine in Kyoto is dedicated to bunnies.

France's most famous cemetery, with some of its most curious tombs.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

The only museum with its curator—and her pets—buried inside.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

The oldest operating pharmacy in the world features 800-year-old recipes.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

This massive library holds what was once the largest book collection in the world.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

A vast Communist-era exhibition space in the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

A collection of art from Bulgaria's time as a communist state.

Mountain where Jesus was first tempted by the Devil.

This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

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

Floating swimming pool within a moored vessel.