Parliament is always open for tours on a Saturday, but during the summer the MPs pack their bags and head back to their constituencies, allowing Parliament to throw open its doors during the week as well.
The tour follows the processional route taken by Her Majesty the Queen when she performs the State Opening of Parliament. You will be led through the Norman Porch, the Robing Room, the Royal Gallery and Prince's Chamber, and then into the House of Lords itself, before heading into the Central Lobby (where they do all the interviews on the 10 o'clock news).
The tour will then continue on through the Member's Lobby and into House of Commons. You will enter the chamber from behind the Speaker's Chair and walk straight down the centre aisle, passing just a few feet from where the Prime Minister stands during PMQs.
You will then continue on to St. Stephen's Hall and finish at Westminster Hall -- the 1,000 year old chamber that witnessed the State trials of Guy Fawkes and Charles I.
Craig has been on this tour numerous times and definitely recommends giving it a try. Check out his full review here. You might also like to read his review of a Saturday tour as well, so you can compare the two. (If truth be told, Craig actually prefers the Saturday tour because they're usually less busy. And you get the option of walking around on your own with a set of headphones.)
Note: Tickets can either be bought online beforehand, or purchased on the day from the ticket office at Portcullis House (on Victoria Embankment). We don't recommend leaving it until the day, though, because these tours are very busy and you might end up with nothing, or getting a timed ticket for much later in the day.
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Admin – “If you look in the 'Tickets & Cost' box on the event page there's a link to their website -- parliament.uk/visiting/visiting-and-tou ... arliament/You can also just turn up on the day and buy them from the ticket office in Portcullis… more”
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