This former Masonic lodge has been transformed into part museum, part bar, all awesome.

Underneath one of the region's most historic roads lies the home of Plato's successor.

This museum is filled with an eclectic collection of unique inventions.

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

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

A little-known caravanserai hidden among farmhouses in the Turkish countryside.

One of the world's earliest skyscrapers.

An urban forest overtakes what was the greatest failure of utopic urban housing.

A kitschy, creepy St. Louis mainstay.

A big museum full of little worlds.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

Less a museum than a bizarre fantasy world created by artists and engineers.

This archaeological site was once a grand city of the Indus Valley Civilization with a sophisticated system for conserving water.

A WWII museum that tries to reenact history.

Underwater roads undetectable from the surface used for escape routes from foreign invaders.

The pyramid and dome deep inside the Dzūkija forest are believed to channel divine energy.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.

Ever-growing collection of devils in art.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

A narrow strip of land is home to the tallest migrating dunes in Europe.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

The first museum dedicated to exploring humanity's cultural relationship with the celestial world.

One of the first hotel rooms in a pod.

This brothel-turned-restaurant features plenty of surprises and elaborate, extravagant architecture.