Garden of small inventions Visitors of all ages are invited to Port Discovery to see the new exhibit--a garden of small inventions, which features interactive activities and gadgets(,,) for the environmental protection. The exhibit runs through Sept.4. Fee is $10.75; free for ages younger than two. Contact 410-727-8120 or portdiscovery.org. Rain-barrel workshop The Parks and People Foundation presents a workshop on building water-efficient rain barrels for the home between 6pm-8pm on Wednesday at the foundation's Stieff Silver Building. Cost is $50 and includes the barrel and all materials. Contact 410-448-5663, ext.109. Pruning plants Visitors can attend a workshop on pruning plants between 9:30am-10am on Tuesday at Ladew Topiary Gardens. Visitors should meet in the Visitors Center at Ladew, Jarrettsville Pike, Monkton. $10; free for Ladew members, and includes admission to the gardens and the nature walk. Contact 410-557-9570 or www.ladewgardens.com. Landscape exhibit Photographs, paintings and drawings will be shown at Landscape and Nature--a view from Maryland, through Sept.9 at the University of Maryland. Opening reception is between 5pm-7:30pm on Tuesday. Contact 301-985-7937 or um.edu/art. It will cost a couple with their newly-born baby  _   to visit Port Discovery.
$ 30 $100 $21.5 nothing