This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

A battle between nature and architecture in the Cambodian jungle.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The only castle in North America to ever house European sovereigns.

Diego Rivera's massive tiled fountain and failed infrastructure project.

66,000 pieces of art, donated by one of the world's richest men.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

Mountain where Jesus was first tempted by the Devil.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A little known Colombian theme park of giant curiosities.

A mouldering Colombian bull ring stands as a reminder of the country's complicated relationship with a brutal sport.

Storied crypts fill the most famous cemetery in Colombia.

This Soviet-era athletic and recreation facility is the highest ice skating rink in the world.

The deepest metro station in the world.

340-foot statue built to honour the Heroes of the Soviet Union.

An ancient iron pillar in Delhi that seems to be rustproof.

A blooming house of worship for the masses.

A shrine built to combat the bad karma of a commercial venture.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.