Shrine to Japanese water-goblins, complete with their preserved body parts.

Not quite the menace it once was, this monster still has some chops.

An exquisite tunnel of cascading flowers.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

A two thousand year old brothel uncovered in Northern Greece.

An abandoned Byzantine fortress and notorious prison.

This striking sculpture of Icarus honors Greece's fallen flyers.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Where commuters walk through remnants of an ancient Greek necropolis.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

An ancient octagonal weather station named for the eight Greek gods of wind.

The ruined doorway is a portal to the building's turbulent and torturous past.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

This historic church with a connection to "Uncle Sam" is now a fraternity house.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A 13,000-year-old mastodon skeleton was found during the construction of a 19th-century New York mill.

The small burial plot is located in a mall parking lot.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Cryptic messages embedded in the New York City sidewalk.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.