Photograph courtesy of Millennium Art Festival

This weekend’s design events include plenty of art and commerce:

Millennium Art Festival

The temperatures are warming up, which means the return of street fairs and art festivals. Kick the season off right by heading downtown this weekend and checking out one of the best—the Millennium Art Festival.

The fest returns to the intersection of Michigan Avenue and Lake Street for its fifth year Friday through Sunday. You’ll be able to browse work from more than 130 artists. No matter what kind of art you’re looking for, this show has it: ceramics, glass, sculpture, paintings, photography, furniture, and more. (One I love? This charming piece by Christopher Carlo

This isn’t one of those any-artist-is-welcome events—each vendor’s work is juried and vetted before he or she is given a spot. The best part: the festival is totally free. Basically, there’s no reason not to go.

Chicago Design Museum Pop-up at Block Thirty Seven

The Chicago Design Museum isn’t an art museum in the traditional sense. It serves more as a community for local designers than as a permanent brick-and-mortar exhibition space.

But for the month of June, that’s changing.

Starting on Saturday and running through the end of the month, the Chicago Design Museum is hosting a pop-up exhibition at Block Thirty Seven (108 N. State St., 3rd floor). The theme is “Work at Play” and artists on exhibit include Marian Bantjes, whose cool twist on typography prints is shown here, John Massey, Michael C. Place, and Wolfgang Weingart.

Haberdash at the Wit

Men’s boutique Haberdash is the latest store to do a pop-up—and this one is in the lobby of the Wit Hotel (201 N. State St.).

While the brand new mini-shop obviously sells mens’ accessories and footwear (Haberdash’s mainstay), it also sells apothecary items and home décor, including Reigning Champ cotton blankets and Pendleton beach towels. Open from 10 a.m. to 7 p.m. every day through Labor Day weekend.

Flea MKT’s Second Act

The first Chicago Flea MKT was such a success it’s back for a second round. This Sunday from 10 a.m. to 5 p.m., the playground at the A.N. Pritzker School (Evergreen Avenue just west of Damen Avenue in Wicker Park) gets taken over by booths selling handcrafted goods and delicious homemade treats.