Statue commemorating the use of ether in anesthesia.

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

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

This landmark cemetery in Boston was created more than 300 years ago.

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

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

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

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

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Try not to get slimed in Tribeca.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

An ordinary pond with fish from out of this world.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Once a black market electronics marketplace, now an otaku shopper's paradise.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

This tiny museum's sizable collection is jammed into a former underground public toilet.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

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

Blitzkrieg bop your way through Berlin's Ramones Museum.

This monumental work of art symbolizes the coming together of a previously divided city.