Lincoln, originally known as Lindum Colonia, was an important settlement in Roman Britain. Significant architectural projects such as an aqueduct and the Foss Dyke Canal were built here. A large Roman arch, known as the Newport Arch, still stands today and is a testament to the city's Roman heritage. Lincoln's Roman connections continued into the Middle Ages, where unique historic landmarks were built such as Lincoln Castle, which incorporates history from Roman times to the present.