Meat Market Gallery: German-born, Montreal-based performance artist Stephan Schulz is just passing through in “Exercise Machine,” which “establishes a temporary relationship between a site and the public occupying it.” Schulz’s work is accompanied by an exhibition of drawings by local artist Reuben Breslar. The reception is at 6 p.m. Friday, July 13; the exhibitions are on view from noon to 6 p.m. Wednesdays through Saturdays and noon to 3 p.m. Sundays, to Sunday, Aug. 12, at Meat Market Gallery, 1636 17th St. NW. Free. (202) 328-6328.

Touchstone Gallery: German physician Ulrich Stein, who “believes that colors have a therapeutic effect on emotions as well as an impact on healing,” looks to practice some alternative therapy in an exhibition of photographs. The reception is at 6 p.m. Friday, July 13; the exhibition is on view from 11 a.m. to 5 p.m. Wednesdays through Fridays and noon to 5 p.m. Saturdays and Sundays, to Sunday, Aug. 5, at Touchstone Gallery, 406 7th St. NW. Free. (202) 347-2787.