The deepest metro station in the world.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

This impressive Boston holy house is the American mecca for Christian scientists.

An enormous, inside-out glass globe built in 1935.

This erect, phallic geological spire wasn't always named so domestically.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.

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

This archeological site hidden behind Teotihuacán's pyramids shelters 1600-year-old murals.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Countless grotesque faces stare out from this eerie Prague art wall.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Monument to a suicide protesting the Soviet invasion.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.