A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

The rocky remains of an ancient Greek forest.

This lesser-visited World Heritage site in Athens boasts an impressive ensemble of medieval gold mosaics.

Step inside an ancient beehive tomb built for a mysterious cult hero.

The secular incarnation of a religious meditation.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

A staircase made of gravestones leads up to this church built into a giant rock.

Public water fountains built during the Ottoman Era still stand throughout this seaside town.

This legendary city has been a tourist attraction for centuries.

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

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

A quirky collection of outsider art made from automobile parts.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A 20-foot-tall quarter commemorates George Washington’s ties to Bedford County.

This extraordinary model train layout covers over 1,700 square feet, with multiple trains running simultaneously.

These ruins saw a second life as a cemetery.

An unpaid bill, a stolen stone, and a famous fashion designer rest peacefully alongside a heroine of Highlands history.

The ruins of a medieval seminary some say is the oldest university site in Scotland.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Memorializing an American tragedy of massive proportions.

Designed to allow funerals to proceed over the River Dulnain.

The overgrown ruins of this once majestic castle sit forlornly in the Scottish countryside.