Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A popular European tradition makes its way to the states on one of America's most famous bridges.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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

Relive a Polish uprising via an enormous, century-old cyclorama.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

A mysterious stone embedded at the base of a historic Boston building.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

At the foot of an active volcano sits a church miraculously spared by its lava.