The Exchange District is a National Historic Site of Canada in the downtown area of Winnipeg, Manitoba, Canada. Just one block north of Portage and Main, the Exchange District comprises twenty city blocks and approximately 150 heritage buildings, and it is known for its intact early 20th century collection of warehouses, financial institutions, and early terracotta-clad skyscrapers. The Exchange is home to the Manitoba Museum as well as the Planetarium and a Science Gallery.