UX Challenges - Done reading about UX? Start doing it.
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
Befront - Learn UX/UI design skills in practice with bite-sized tasks
CADMAPPER - Instant CAD files for any location on earth
Weekly UX Exercise - Receive challenges top companies use to interview designers
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.