Discover the car that once belonged to the King of Nepal in a former Soviet-era taxi park.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Housed in a former air raid shelter, this museum is dedicated to the history of computing and video games.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

A massive collection of petroglyphs dating back some 40,000 years.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

Mysterious hillside with a continuously burning natural fire.

A shrine of fire worship built on top of a natural flame.

A unique museum dedicated to culture and artistry of carpet weaving.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

A gigantic collection of teeny, tiny books.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

This bell stars in a tragic love tale and is said to make wishes come true.

The world's oldest bookshop still in operation.

Elaborate tile work in this railway station tells the story of Portugal.

Climb to the top of the world's largest seated bronze Buddha.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.