The document summarizes the history of architecture in Colombia. It discusses how modern architecture was embraced in the 1930s as older, conservative buildings were torn down. Colombian architecture reflects its 17th century Spanish colonial origins. Most Colombians lived in simple cinder block homes until the 1940s, and uncontrolled urban growth led to large informal settlements. Some modern high-density housing projects in the mid-20th century followed the principles of Le Corbusier. Architecture in this period was influenced by 19th century European styles but did not always adapt well to the local urban context.