Located in the old and charming district of Shicha Hai, the Drum Tower of Bejing is less than 1.5 miles north of the Forbidden City. Originally built in 1272 for musical reasons, the Drum Tower is now a popular tourist attraction, with performances taking place every hour.
More information on the Drum Tower can be found on this Wikipedia page: The Drum Tower of Bejing
Thanks Björn!