Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

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

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

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

Two stunning 17th-century libraries and a cabinet of curiosities.

A creepy, deserted mock Arabian village can be found in the middle of the Qatari desert.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

Fourteen sculptures showing the development of a fetus stand outside a hospital for women and children.

The enormous diamond-shaped building packs a trove of academic and literary treasures into one futuristic space.

This fountain pays homage to Qatar's history of pearling, the primary industry before oil.

This unique museum doesn't shy away from highlighting Qatar's role in the history of slavery.

Qatar's oldest market can trace its origins back more than a century.

Some of the ancient-looking huts among these strange rock formations aren't ancient at all, but built as part of a movie set.

The building is a gigantic piece of art inspired by the shape of a desert rose.

Robot jockeys ride their humped mounts to victory as part of a 21st-century twist on an ancient desert sport.

Europe's oldest still-operational tea farm also boasts a spectacular view.

A small but charming botanical garden that contains many exotic plant species.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

Elaborate tile work in this railway station tells the story of Portugal.

Ancient catacombs form the foundation for this Rococo orgy of a church.

A hidden three-foot-wide house separates these two regal churches.

This abandoned five-star hotel is now a five-star urban exploration destination.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”