Heythuysen (population: 12,106) is a town in the southeastern Netherlands, in the province of Limburg. The municipality covers an area of 58.40 km² (of which 0.46 km² water).
... who sailed the Atlantic Ocean
Richard Francis Burton, (1821-1890), looking for the source of the Nile, discovered Lake Tanganyika
Richard E. Byrd, (1888-1957), ...