In Wimsey Cove Maps and Art’s special collection of historic maps of the Four Rivers Heritage Area, Anne Arundel County and the state of Maryland, you can look for your house on a Sanborn map; find your farm on the Martinent of Hopkins 19th century map; and see Maryland as John Smith mapped it.

11am-3pm: free. Wimsey Cove Framing & Art, 3141 Solomons Island Rd., Edgewater: 410-956-7278; www.marylandframing.com