Added exceptional design challenges:

 

To discover more on a particular Challenge, visit the relevant link.

Chemical Product ChallengeBuilding ChallengeCulinary Arts ChallengeConstruction Materials Challenge
Student Works ChallengeTextile ChallengeCore Resources ChallengeIcon Challenge
Spacecraft ChallengeManufacturing Machinery ChallengeManufacturers ChallengeItalians Challenge
Ultimate Cars ChallengeCreation ChallengePublishers ChallengeAwards Challenge
Greatest Products ChallengeGreatest Architecture ChallengeGreatest Designers ChallengeArchitecture Art and Design Challenge
Design Olympics ChallengeInspiring ChallengeTop Design ChallengeProfessional Designers Challenge
Office and Bureau ChallengeSales Centers ChallengeCar ChallengeJewelry Challenge
Cookware ChallengeBusiness Strategy ChallengeBlogging ChallengeGray Goods Challenge
White Goods ChallengeParamount ChallengeFuturistic ChallengeDesign Submissions Challenge
Electronic Goods ChallengeExhibit ChallengeDistrict ChallengeGraphic Advertisements Challenge
Additionally see: Catalog of Design Challenge | <- Index