Hardly a week goes by without a festival, special event or discovery to be made in metro Atlanta. Here are a few favorites. Tour an urban forest from 40 feet in the air with the new Canopy Walk at the Atlanta Botanical Garden. Or, mix in mingle in the garden for an evening of concerts or cocktails. In Alpharetta, enter Matilda’s magical complex of wildly decorated cottages, which showcases and sells folk art at reasonable prices. Explore row upon row of exotic foods at Your Dekalb Farmers Market or check out a chef demonstration at the Morningside Farmers’ Market on Saturday mornings.