Buildings come in many shapes and sizes depending on their function and the period in which they were made. At the Barbican you can take an architectural tour of the twentieth and twenty-first centuries through a series of talks, tours, workshops, and film screenings. Constructing Worlds runs until the 22nd March, the the main feature of the even is a photography exhibition that explores architecture in the modern age. The display of over two hundred and fifty works by eighteen photographers from the 1930s onwards shows how our style and opinion of architecture has changed over the last eighty-five years. Compare New York skyscrapers to decaying colonial structures in the Congo and Californian post-war homes to Modern Venezuelan towers. Entry to the exhibition is £12 adult, £10 concessions, £8 students and teens, and free for children. You can take a guided tour of the exhibition on the 30th October with with Andrew Higgott and Timothy Wray.