Communist-era architecture can also be found in Bucharest's residential districts, mainly in ''blocuri'', which are high-density apartment blocks that house the majority of the city's population. Initially, these apartment blocks started to be constructed in the 1960s, on relatively empty areas and fields (good examples include Pajura, Drumul Taberei, Berceni and Titan), however with the 1970s, they mostly targeted peripheral neighbourhoods such as Colentina, Pantelimon, Militari and Rahova. Construction of these apartment blocks were also often randomised, for instance some small streets were demolished and later widened with the blocks being built next to them, but other neighbouring streets were left intact (like in the example of Calea Moșilor from 1978 to 1982), or built in various patterns such as the Piața Iancului-Lizeanu apartment buildings from 1962 to 1963.