The Maths in the City project ran between 2010-12 but the Mathmagicans still run occasional tours on request. Please contact them if you are interested in setting up a one-off tour.
You can also take the tours yourself or run them for your own group
Explore fascinating examples of maths in cities around the world, on this website.
Create an online "Site" about maths in your city, or collect together sites to make your own tour.