Hot Doug's "Hot Dog" Stand.

A theater sits abandoned on Roosevelt Road, once majestic in splendor, now majestic in decay.

Hidden on the 7th floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

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

A century-old network of freight tunnels underneath the city's historic business district.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

A bloodstain from "the wound of the transverberation of the heart."

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

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

A beloved Chicago music venue offering cold beer and lots of “Friendly."

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

This supermarket offers shoppers a window into the past alongside their groceries.

This 18th-century fort surrounded by a moat was used to store gun powder and ammunition, and now sits in the middle of a large part in Dublin.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

Though they've since been renamed, these two streets hint at Dublin's darker days.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

A meditative space out of a fantasy story.

The oldest continuously operating Catholic school west of the Mississippi.

Southern California’s Theme Park Beginnings.