This pink watchtower served as the seat of the Greek government after independence from the Turks.

The only ancient site that remains on the south bank of the sacred Ilissos river.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

Where commuters walk through remnants of an ancient Greek necropolis.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

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

Legend says this sacred tree was a gift from goddess Athena.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.

Take a step into the workshop where Edison and his employees revolutionized the world.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

A Christian monastery stands on what was once a holy Incan temple.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

At this farm in upstate New York, the former president plotted his reelection campaign.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

Abandoned rock quarry now a haven for mountain bikers and hikers.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.