With over 10,000 lights, this engineering marvel lights up the city after dark.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

This small, lush island has a long and bloody history.

Dedicated to one of the author's most iconic works.

Picturesque intersection of witchcraft and ancient Christianity.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

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

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

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

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

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

A geological oddity topped with a 2,000-year-old pagan temple.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

This public elevator links the lower city to the upper city of Salvador.

This 17th-century Portuguese fort now houses a nautical museum.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Eduardo Kobra’s breathtaking 32,300-square-foot graffiti wall took over Rio’s Olympic Boulevard.

The ruins of a 19th-century aqueduct run through this Brazilian island's deep forest.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

A statue dedicated to the founders of communism.