The centre of the city is The Octagon, an eight-sided plaza with a central carriageway. This is surrounded by another, larger octagonal street called Moray Place. The main retail area stretches north up George Street toward Dunedin North, and to a lesser extent south along Princes Street and east along Lower Stuart Street. At the end of Lower Stuart Street, 400 metres from the Octagon, lie Anzac Square and the Dunedin Railway Station, with an industrial area and the harbour beyond.