Mustamäe (Estonian for Blackhill) is one of the 8 administrative districts (Estonian: linnaosa) of Tallinn, the capital of Estonia. The smallest by area (it covers only 8.1 km²), it is at the same time the second largest district by population with 66,305 inhabitants (As of 1 November 2014). It is located 5 km from the centre of Tallinn and is bordered by districts Haabersti, Nõmme, and Kristiine. Local housing is mostly represented by 5–9 storeys high panel blocks of flats, built in the 1960–1970s.