Much of the fort remains buried underneath the medieval Castle Keep, which gave the city of Newcastle its name. Few excavations have taken place and there is little to see due to the castle and surrounding city centre buildings being built over the fort's layout. However, the fort's "praetorium", "principia" and two granaries are known to be in the environs of the castle, and their outlines can be seen marked out in stone adjacent to the castle keep. The remains of an original milecastle were found behind the Newcastle Arts Centre, just off the A186 Westgate Road. The precise line of Hadrian's Wall in the vicinity of the fort has not been found, so it is not known for example if the fort was attached to the Wall.