Squatting (known in Spanish as okupa) in Peru is the occupation of unused or derelict buildings or land without the permission of the owner. From the 1940s onwards, land invasions created shanty towns which were first called barriadas and later pueblos jóvenes. They were initially repressed, then the government decided upon toleration and by 1998 it was estimated 2.5 million inhabitants were living in this way in the capital Lima. There are also slum tenements in the centre known as solares or tugurios, and a "Wall of Shame" has been built to separate rich and poor areas of the city. During the COVID-19 pandemic, an increase in the occupation of UNESCO World Heritage Sites such as Caral and the Nazca Lines was reported.