Things to do this week: April 5-11 Monday, April 5 ART: Shirlee Bauer: Watercolor Paintings, 9 a.m.- Monday-Thursday, Middletown Arts Center, 130 N. Verity Parkway, Middletown. Award-wining watercolorist displays works. Runs April 5-May 27. middletownartscenter.com. CHARITY: Bid to Build Auction, daily through April 11. Bid on commemorative pieces, works of art, photography, jewelry, and experiences like Reds tickets and unique tours. Benefits Over-the-Rhine Museum. otrmuseum.org. MUSEUMS: A Year on the Edge, 10 a.m.-4 p.m. Monday, 10 a.m.-4 p.m. Thursday-Sunday, Cincinnati Museum Center at Union Terminal, 1301 Western Ave., Queensgate. Experience the 20,000-acre wilderness of the Edge of Appalachia Preserve System through the photographer's lens. Closed Tuesday-Wednesday. $14.50, $13.50 ages 60-up, $10.50 ages 3-12, free members and ages 2-under. cincymuseum.org.