March 6 and 7; times vary. Choose from a tasty list of festival events, including the Taste of Chocolate (chocolate vendors and treats), the Chocolate Challenge (a chocolate arts extravaganza) and the Kiwanis Pancake Breakfast. Each year, a portion of the proceeds benefits a charitable organization. Old Town Fairfax; 703-385-1661; www.chocolatefestival.net; prices vary.