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

One of the last functioning antique elevators in Chicago.

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

Beloved bar home to musicians of all eras and reputations.

Parking lot where a Chicago mayor was inaugurated under very sketchy circumstances.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

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

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

Once an ornate movie theater remade by Catholic Charities.

Years of archaeology, just chillin' by the water cooler.

Home to a protest movement, a bombing, and a dramatic change in labor history.

A military museum and library dedicated to the citizen soldier.

This historic hotel invented the chocolate brownie.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

A very classy 1920s-era bar right in Grand Central Station.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Former bath house turns gastropub.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

A legendary speakeasy bookstore returns from the brink.

Wisconsin's most celebrated export gets the royal treatment on I-94.

An eccentric park and pool.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.