Celebrate London's architectural wonders as Open House London throws open the doors to hundreds of buildings and spaces in and around the capital.
More than 800 free guided tours, architectural-themed walks, cycle rides, debates and activities are available during the weekend. Explore iconic buildings that are not usually open to the public, find out interesting details about more familiar spaces, and step into the private homes of the rich and famous.
Open House London 2014
Popular attractions this year include 10 Downing Street, the London Eye, Gray’s Inn and the Antony Gormley Room at the Beaumont Hotel, all of which required entry via a ticket ballot that closed on 7 September. Three events were also balloted: Open Debate, Green Debate and Arriva Mystery Tour.
If you've missed out on the ballot there are many other highlights, including the glass-clad City Hall (the offices for the Mayor of London), the majestic Mansion House and City financial hub and the Bank of England. For something more unusual visit Nick Baker's eco home 25C Montpellier Road, or Ott's Yard, a series of repurposed sheds and a converted workhouse laundry.
This year also sees a host of riverside events in conjunction with the month-long Totally Thames festival, such as tours of the Billingsgate Roman Bath House.
In addition to the architectural spaces on show there are more than 80 landscape-focused events and venues; while family fun is available in the form of quiz trails and model-making.
The 2014 theme is 'Revealing', which focuses on how architecture is evolving to make London a more liveable city.