While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

This monumental work of art symbolizes the coming together of a previously divided city.

Where once there was a train station bathroom, there is now this German burger joint.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

A fascinating insight into daily life in the Eastern Bloc.

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

Berlin's old airport.

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

This curious sculpture represents the perseverance needed to take to the skies.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

An enormous illuminated figure dances on the Las Vegas strip.

Keen eyes can find the Disney influences throughout this treasure trove of a tiki bar.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This fountain was designed to honor the man who helped bring water to Barcelona.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.