Hang out with thousands of butterflies in one of the world's largest such enclosures.

A second generation sun-powered marvel lights up the night.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

This architectural oddity is an oasis of green on the outskirts of Valencia.

Crumbling World War II-era gun emplacements still stand near lighthouses on the Spanish coast.

This panoramic lift provides a futuristic ride up San Pedro Mountain.

Giant granite sculptures representing family on the northern coast of Spain.

The oldest Roman lighthouse still in use.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

During World War II, the Nazis repurposed this beer cellar to store stolen artwork.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

The final resting place of one of Germany's most accomplished Renaissance men.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

You've probably seen these distinctive orange-tiled columns on the big screen.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Metro station with a claim to rock n' roll fame.