“Dar” is a large city with over four million people, but manages a laid-back atmosphere in keeping with its Indian Ocean setting. It is the business hub of Tanzania. The National Museum has the paleontological remains of the zinjanthropus from Olduvai Gorge, as well as historical exhibits about other past civilizations including the Shirazi culture of Kilwa, the German and British colonial periods and the slave trade. Just outside the city, a Village Museum is an open air exhibit of traditional huts from different parts of the country, with people practicing the traditional crafts and techniques, and tribal dancing performances. The Mwenge Carvers’ Market is a popular place to pick up a distinctive hand-crafted souvenir. The city also boasts two German churches, one Catholic and one Lutheran.