Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This is one really big nut.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

This mountain tram provides stunning views while hanging from a single, steel thread.

A giant "X" symbolizes the blood spilled from the brutal Juárez drug wars.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

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

The ancient tomb acts as a calendar that keeps perfect time.

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

Stonehenge has nothing on Castlerigg’s views.

This cemetery features modernist statues as strange as its name.

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

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

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

A little sculpture with a large wardrobe.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Christ's blood preserved in a Belgian town.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The fairy tale castle of the "fairy-tale king."

Swedish skyscraper with a 90° twist.