Lusaka's central business district (CBD) is located in the area surrounding Cairo Road, to the west of the Zambia Railways line from Livingstone to the Copperbelt. This is the historical site where the original colonial town was founded in the early 20th century. Cairo Road, a north–south multi-lane highway roughly  in length, is the CBD's main artery, which features office buildings as well as shops, cafes and other retail businesses. Four of the top five tallest buildings in Zambia are located on Cairo Road, including the tallest, the  23-storey Findeco House. To the west of Cairo Road there are two major markets, the Central Market and New City Market.