Lucknow, a large city in northern India, is the capital of the state of Uttar Pradesh. Toward its center is Rumi Darwaza, a Mughal gateway. Nearby, the 18th-century Bara Imambara shrine has a huge arched hall. Upstairs, Bhool Bhulaiya is a maze of narrow tunnels with city views from its upper balconies. Close by, the grand Victorian Husainabad Clock Tower was built as a victory column in 1881.

The city stands at an elevation of approximately 123 metres (404 ft) above sea level. Lucknow district covers an area of 2,528 square kilometres (976 sq mi). Bounded on the east by Barabanki, on the west by Unnao, on the south by Raebareli and in the north by Sitapur and Hardoi, Lucknow sits on the northwestern shore of the Gomti River.

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