Palace where the nearly un-killable Rasputin was murdered.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

Museum celebrating the achievements of the Soviet space program.

Immortal combat in a Moscow museum.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

With no menu and no sign, this 130-year-old taverna doles out affordable home cooking.

Since 1969, this restaurant has served up dishes typical of Istanbul's Greek diaspora.

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

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

Scars of this building's past life as a violent prison still cover its walls.

An abandoned Byzantine fortress and notorious prison.

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

This famous archeological mystery may be an ancient example of movable type.

Where commuters walk through remnants of an ancient Greek necropolis.

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

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

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.

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

This ancient hydrological marvel is now the base of a modern outdoor cinema.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.