Just north of Camden on US 1 lies Belfast, a sleepy often-overlooked town, of grand architecturally eclectic houses and a diverse population mingling in the galleries and cafés of town. Five miles northeast, Searsport has a fine historic district with its share of 19th-century mansions. Searsport is also home to the superb Penobscot Marine Museum , housing Maine’s biggest collection of mariner art and artifacts, which are spread through a number of historic buildings.