Where old school Polish Chicago and young hipster Chicago live side by side.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

This old steel industry company town has a tradition of parking cars on the sidewalk so people can walk in the narrow streets.

A speakeasy takes on Chicago's drinking culture.

All of Chicago's wood-paved streets are long gone but two alleys remain.

The subtle science of a master molecular gastronomist.

A hot dog stand where the heads are just as hot as the dogs.

One of the last functioning antique elevators in Chicago.

Theater has had many different incarnations but has survived the ravages of time.

A long lost multi-cultural music venue used to reside in the bottom floor of Chicago's Flat Iron Building.

Cemetery featuring rare glass-fronted columbarium.

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

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

From banquet hall to Masonic Lodge and now concert venue, Ganz Hall is a breathtaking glimpse of into the golden age of American architecture.

This shop for all your super spy needs hides an educational secret.

A lush green oasis in the middle of Chicago.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.