What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A wunderkammer of mysterious objects and stories.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

Started as a kitchen garden, now the second largest botanical garden in the world.

A surreal museum of extraordinary industrial objects.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This professional clown's home is an outsider art wonderland.

This wondrous waterfall rushing down a green-covered mountain wasn't discovered until 2010.

The curios of pharmacist and collector Henry Wellcome.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

Architectureal fantasy quarter of Rome.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

Gods clash with machines in a power plant regenerated as a museum.

The underground sanctuary of a mysterious ancient cult.

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.