Hosting the ceremony and the reception in the same venue is convenient, but also logistically complicated because it takes a large and well-equipped staff to make the fast turnaround after the ceremony. For a quickie-type ceremony, try the top of The Grand Staircase (far left) at the Art Institute of Chicago, 312-443-3600, artic.edu. Ceremonies in this public space can’t last longer than 15 minutes (about as speedy as they’d be in a judge’s chambers). Hold your reception in the museum’s Chicago Stock Exchange Trading Room (near left), where a plum and emerald-green Art Deco wall mural offers a colorful backdrop. Capacity for Grand Staircase, 175; seated capacity for Trading Room, 250; no outside caterers.