Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A display of magnificent stained glass windows is the first exhibit of its kind.

A speakeasy takes on Chicago's drinking culture.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

Real bones which are said to have belonged to a Polish dragon.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

An underground city of salt.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

A small part of lower Manhattan is actually made from a bit of England.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

Avoid gangster interaction while window-shopping.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

The oldest Methodist church in the United States has been spreading the good news for over two centuries.

Unrepaired walls from a 1920 anarchist bomb attack.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.