Athens, Greece
Caves of Filopappou Hill
These caves secretly held national treasures during World War II.
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Places on this traveler's wishlist.
Athens, Greece
These caves secretly held national treasures during World War II.
Athens, Greece
This small 16th-century church in Athens is almost entirely surrounded by a modern building.
Athens, Greece
The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.
Athens, Greece
Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.
Athens, Greece
This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.
Athens, Greece
The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.
Athens, Greece
Legend says this sacred tree was a gift from goddess Athena.
Athens, Greece
A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.
Athens, Greece
One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.
Athens, Greece
Scars of this building's past life as a violent prison still cover its walls.
Alexandria, Virginia
The narrowest house in America is seven feet of pure spite.
Brandywine, Maryland
This methodist cemetery is slowly receding into the wilderness along a Maryland highway.
Silver Spring, Maryland
The longest escalator in the Western Hemisphere takes over three minutes to ride down.
Silver Spring, Maryland
Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.
Washington, D.C.
This leafy estate is worth $18 million and is so grand it has two mailing addresses.
Washington, D.C.
A clone of a cloned tree that was so important it allegedly had its own guards.
Washington, D.C.
A painfully obvious spy house sits right across the street from the Russian Embassy.