When spending time in Hanoi or Ho Chi Minh City, you are sure to recognize these unique looking homes – usually 3+ floors, incredibly narrow and long, and packed like sardines in a can! These homes are usually only found in cities because of high population density. Historically, when people started migrating to the cities looking for work, land was scarce and the population was relatively high. This is a stark difference from architecture in the countryside, where houses are wide with gardens on three sides of the building.