Amsterdam's former hotspot for public executions and dissections.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

A subterranean house of worship carved right out of the bedrock.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Memorial to the father of the Republic of China.

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

A battle between nature and architecture in the Cambodian jungle.

A non-profit that uses the impressive smelling abilities of African Pouched Rats to find and clear unexploded land mines.

All of Thailand's architectural landmarks, plus some made up ones, all viewable via two-seater bicycle.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

This spectacular mosque houses the second-largest chandelier in the world.

This bazaar is one of the oldest in the Arabian world.

This road earned its macabre nickname after hundreds of Iraqi troops died along it in 1991.

A private collection of over 30,000 ancient and modern items showcasing the beauty of Islamic calligraphy.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

Lived-in building, bedecked with an astonishing array of mirror mosaics.

A hugely vast Irish landscape of barren rock that stretches for miles.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The heads of two giant mythological water horses honor Scotland's horselord past.

The last manually operated turntable ferry in the world.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.