The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

A collection of noses tucked inside an art museum reveals how times have changed.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

It houses the remains of a 17th-century version of the Titanic.

Whitewashed mosque contains the world's largest carpet.

A wild west land agreement was etched right onto this historic Idaho stone.

An obscure waterfall that looks like something out of a fantasy novel.

Romania's triumphal arch looks out over Bucharest.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This Danish park has celebrated the American independence day since 1912.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

Four alabaster giants contemplate the tides on the shore of Denmark.

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

The once highest point in China blends symbolic design with a kick of adrenaline.

Medicinal spa created with the discharge from a geothermal energy plant.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.