This exhibition curated within the library of One Great George Street celebrates the world of engineering and aims to inspire little ones with big ideas. A fun challenge for kids and their families feature alongside the display, tasking visitors with designing a new way for Santa to deliver presents around the world if his traditional reindeer-pulled sleigh were to break down. The child with the best idea will win a trip to Legoland for their whole class, so get them planning pronto. Exhibition goers can also create a 'city of the future' using Meccano, Knex and Lego blocks underneath the beautiful 12 foot Christmas tree. No booking required.