The world's tallest circular building is loaded with symbolism, but many just see a big donut.

Atop this library is one of the most beautiful green spaces in Warsaw.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

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

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

This ancient sword lay in a waterlogged tomb for 2,500 years, but managed to remain relatively untarnished and impressively sharp.

This hulking behemoth is actually five interconnected towers built in the 1960s.

Three columns of volcanic rock shoot out of the ocean.

This two-legged horse statue celebrates a beloved cartoonist and his quirky characters.

These rusting, skeletal structures are monolithic monuments to Glasgow's industrial past

A bizarre stone beast lurks on the beach of a popular tourist island.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

This stately estate house features a tower covered in a bright, modern mural.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A unique seaside cave where Aleister Crowley faked his own death.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

A man throwing a giant severed hand towers over Antwerp’s main square.

Memorial to the father of the Republic of China.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

Looking for a crappy restaurant? Pull up a porcelain bowl and enjoy your meal.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

A Gothic cathedral created from volcanic rocks.