Fortified medieval tower house with lovely roof garden.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Something about this Brazilian city is slightly askew... literally.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.

A huge boat-shaped hotel with a blood red pool and other oddities.

A snake farm famous for its venemous varieties.

A bright little alley in La Boca is a part of tango history.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

A gateway to a mysterious network of underground tunnels.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

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

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Puzzles within puzzles hide a golden treasure in this hedge maze.

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pilgrimage site for star-crossed lovers.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The middle finger of modernity.