This fantastical waterfall is hidden in a cave located in a cracked cliff.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

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

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Cozy basement bar sports an inventory of over 2,000 beers.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

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

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

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

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

A reminder to choose water over wine since 1888.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

The most confusing clock in New York.

Salute the leader of the proletariat.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Commemorating the spot where the famous scientist fed his pigeons.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.