Dine amidst exotic plants at this former royal greenhouse.

The first mosque in the world to receive electricity.

Buying your medicine at this particular pharmacy is like taking a trip back in time.

It's just another skyscraper, but it's shaped like '90s cell phone.

Spanish religion mixed with local architecture has yielded a network of churches unlike any other.

A museum founded to reflect on and remember the human rights abuses under Chilean dictator Augusto Pinochet.

What was once a unique system of urban elevators is turning into a mechanical ruin.

Breathtaking and huge 430 year old maps of Italy.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

One of downtown Berlin's last reminders of its Communist past.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

A surreal statue honoring Prague's favorite literary son.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A small, emotionally charged room inside the Mario Testino Museum dedicated to Princess Diana and one famous photo shoot.

The large collection of pre-Columbian pottery might make you blush.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

Museum precariously perched on a massive yellow pillar.

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

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.