Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

American soldiers discovered Europe's best one-liner at the end of World War II.

Take a walk in a recreation of ancient Rome.

The Guardian of Tallinn.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

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

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

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Bouncing, delightful, mechanical art at the MIT Museum.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

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

A centuries-old church stands as a testament to Boston's "father of architecture."

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

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

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

An artist's cute bronze subway sculptures belie his violent artistic past.

Elevated freight railway turned wildly successful urban park.

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