Open House London is back and bigger than ever this weekend. The event, which is celebrating its 25th anniversary in 2017, will see more than 800 buildings and places across London open to members of the public for free on 16 and 17 September.
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For the first time ever, all London boroughs will participate, allowing unique access to everything from government buildings to places of worship. Some of the most popular places involved in the event include the BT Tower, the Gherkin and Battersea