The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Paris' linguistic guide to the international language of, yes, love.

The French leader's hat sits in a glass case at the oldest restaurant in Paris.

The Hudson River School comes alive at this palatial estate.

Created by four famous men, the beautifully designed Buffalo State Asylum was resurrected as a hotel and art center, but still boasts a ghost story or two.

A 19th-century architectural wonder designed by the "father of the skyscraper."

Buffalo's abandoned concrete grain elevators are getting a second life.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

The absurd creation is a compulsory destination for selfies in Buffalo.

The seat of Buffalo government is a gorgeous Art Deco palace.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Order a boozy baba au rhum at the oldest patisserie in Paris.

Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

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

A dazzling display of lights and crystals.

This retired stagecoach tavern is the oldest building in Cleveland.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.