Mark Lane is a street in the City of London linking Great Tower Street and Fenchurch Street. It gave its name to the nearby Mark Lane tube station, which was opened in 1884, renamed Tower Hill in 1964, and closed three years later. For some 240 years, Mark Lane was known for the Corn Exchange (which was the only market in London for corn, grain and seed); it occupied a series of properties on the east side of the southern end of the street.