The LEGO Architecture set number 21034, featuring London, is a complete set with 468 pieces made of plastic. This set, released in 2017, is part of the Skylines subtheme and is designed for ages 12 and up. With details of famous London buildings, this retired set comes in its original sealed box packaging, perfect for LEGO enthusiasts interested in architectural structures. The set includes various landmarks like the Tower Bridge, Big Ben, and the London Eye, making it a great addition to any LEGO collection focusing on buildings.