A Turkish monastery tucked into a cliff wall.

The former home of Dutch anthropologist Bert Flint now houses a collection of Berber art and artifacts.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

Near Belgrade, an ancient-looking sarcophagus serves as a World War I monument.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Dedicated to a Bolshevik revolutionary, this museum is a true time capsule of the Soviet era.

A brilliant turquoise lake in the mountains.

A tiny park in the middle of some big power politics.

This medieval citadel once guarded the western entrance of the Pamir Highway.

Have a steam and some blini at this cafe in a century-old bathhouse.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Its collection includes a broad array of social, geographic, graphic design, and political history.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

Often mistaken for an office building, inside this venue is an amazing collection of Native Alaskan art.

A Ukrainian church canteen doles out hearty fare in an East Village basement.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

The costumes depict the Kurent, the star character of the annual Kurentovanje festival.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.