The oldest surviving presidential residence in the United States.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

Get hands on with the technological marvels of the Classical world.

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

Overlooking the harbor is a beautiful neglected mansion guarded by two Egyptian sphinxes.

This ancient statue of Dionysus lies unfinished and abandoned in one of Greece's oldest quarries.

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

The abandoned summer estate of the former Greek Royal Family.

A little-known park with unusual, half-ruined structures and a mystical energy.

Ruins of a 13th-century fortress perched above a breathtaking Mediterranean bay.

This wrecked ghost ship has been rusting on a Greek beach since the 1980s.

This abandoned Greek island was the last active leper colony in Europe.

An ambiguous ambience emanates from this centuries old leprosy quarantine.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

Temple complex that once housed the famous statue of Nike.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.