An Elvis superfan built Denmark's own version of Graceland.

The site of one of history's most indelible and horrific tragedies.

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

The bridges portrayed on EU currency aren't fictional anymore.

A statue of the second-tallest Dutchman in history.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

This vast World War II defense line was the site of a fierce battle.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

Interactive modern and vintage submarine equipment, World War II relics, and submarine attire.

Found in the waddenzee, this propeller has been put on public display as a reminder of the Second World War.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

The remains of this RAF plane and its crew were lost for decades, nearly engulfed by the Malaysian jungle.

In Midtown Atlanta, tons of marble appears to be devouring a Fiat Panda at this unique art installation.

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

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

This declassified Cold War bunker hosts a large collection of Swedish aircraft.