The Sears store at Six Corners in 1965. View Full Caption Six Corners Association

CHICAGO — How well do you know Six Corners?

The pulsing intersection boasts a deep-rooted legacy as one of the busiest retail districts in the city during the middle of the 20th century. But a mountain of other tidbits — like its row of nickelodeon theaters, or the popular bar responsible for Milwaukee Avenue's sharp turn at Cuyler Street — undergird the district's 127-year history as a Chicago neighborhood.

Every conceivable factoid will be unearthed this Sunday, during a three-hour walking tour of the neighborhood organized by the Six Corners Association.

The tour will cover about 1½ miles of the Portage Park neighborhood, an area Northwest Side historian Daniel Pogorzelski says "tells the story of Chicago's development writ small."

"There's a whole host of interesting layers you can explore in the built environment that tell you all about the different eras of Six Corners," said Pogorzelski, who's set to lead the tour Sunday. "They predate its annexation [into the city in 1889], up through the era of movie palaces and into the beautiful art deco architecture that was built afterward."

The tour will kick off from Portage Theatre, 4050 N. Milwaukee Ave., at 4 p.m. Sunday, with a stop at Community Tavern, 4038 N. Milwaukee Ave., at 5:15 p.m.

Tickets cost $30 each and are available online. Each tour-goer will get a Six Corners T-shirt, a pack of four Six Corners postcards, a bottle of water and a snack, according to the event description.