Scroll down the page and click on the links to download a whole collection of engineering icons for you and the family to colour in over Christmas
You can choose from modern classics such as the new look St Pancras Station, High Speed 1, Wembley Stadium and the London Eye to historic masterpieces such as Tower Bridge and St Paul's Cathedral.
There is even a selection of plant!
So send us your pictures - with names and ages - and we'll send the best a luxury art kit.
Happy Christmas colouring!
This challenge has been created by NCE in association with Rail Link Engineering, the consortium of Arup, Bechtel, Halcrow and Systra that designed and project managed High Speed 1. Fore more information visit www.rle-online.co.uk