Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

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

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

World's only telecommunication tower with a wooden pinnacle.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

The world's brightest bioluminescent bay.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

The world's second largest single-dish radio telescope, once used to contact E.T.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

Climb inside an iron crystal magnified 165 billion times its normal size.

A little sculpture with a large wardrobe.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.