Thousands of Londoners and tourists have spent the weekend queuing for the chance to look inside the capital's most iconic buildings, including Battersea Power Station and the Bank of England, for the Open House London project.
According to the Evening Standard, many people were turned away from Battersea Power Station yesterday (Saturday) and the queuing system, which ran in two lines along the promenade at Battersea Park and down Queenstown Road, was criticised.
Speaking to the Daily Mail, Robert Deas, 49, from Richmond in south-west London, said: "This is the last chance any of us will have to see Battersea Power Station.
"We've been in the queue, in total, about an hour-and-a-half, and that has been poorly managed.
"There are now two queues, one running back to Albert Bridge, and one to Vauxhall in the other direction, and where they meet there has been quite a lot of ill feeling.
Early on Sunday morning, Open House London tweeted: "Queue alert! If don't want to stand for 5 hrs avoid #batterseapowerstation & #gherkin #30stmaryaxe #bankofengland 2hrs".
Battersea Power Station is one of 700 landmarks that have opened their doors to the public for one weekend only.
The private buildings are mostly open on a first-come basis; however sites including 10 Downing Street and The Shard are accessed by ballot only.
Have you managed to see inside one of London's most exclusive buildings? Leave a comment and let us know below, or tweet us your pictures and we'll retweet.
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