If the tunes of antique organs and musical marionettes don't intoxicate you, the draft beer certainly will.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

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

An abandoned swimming pool decays on the outskirts of Berlin.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

This classic restaurant features a gorgeous mirror-clad room.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Ancient ruins hidden underneath a modern luxury hotel.

A huge enchanting public park just outside the ancient walls of Rome.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

The old church, buried by the 1784 Mount Vesuvius eruption, is a remarkably well-preserved place where people now pray for the souls of the dead.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

A rambling museum which honors the beauty in everyday objects.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

An eccentric home in Sicily turns heads on a regular basis.

Windblown rock formations in an ancient Roman quarry.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

This amazingly preserved Doric temple was abandoned before it was ever completed.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.