If you're in London or Glasgow this weekend, why not take part in Open House? On Friday 17 September you could go on a night time walk around Glasgow or London to raise money for charity. And on Saturday 18 to Sunday 19 September, you can visit hundreds of buildings all over London on Open House weekend.
Go hiking round the city on Friday 17th September
Take part in a hike around London or Glasgow, visit some landmark buildings across the city and help raise funds to tackle cancer. You need to sign up ahead of time to take part, but you can do so easily online or by phone.
If you go on the London Night Hike, you will get special late night access to buildings such as the Guildhall, the Royal Geographical Society in Kensington, and Horse Guards.
In Glasgow, night hikers will be welcomed by Cloisters, Kibble Palace, and the Museum of Modern Art.
Open House 2010 is for you - and it's free
Open House events take place in London on the weekend of 18 and 19 September 2010. Some of the main government buildings opening their doors are:
To find other participating buildings in London to visit, follow the link below and search by borough, period, or type of building.