Open House is a three day feast of architecture running from October 4th to 6th, as many of the most interesting new and old buildings around the city throw their doors open to let the great unwashed inside! You can see modern gems such as Ballyroan Library (above) or the Lighthouse Cinema, or old school classics such as the Casino in Marino. or the GPO. There’s even some mystery buildings, but I’m not quite sure how that works exactly!

The best part is that it’s all free! It’s a chance to see the inside  of that building you pass on the way to and from work twice a day and always wondered what it looked like inside. Go check out all the details here.