Added exceptional design challenges:

 

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

Idea ChallengeConstruction Materials ChallengeStudent Works ChallengePromotion Items Challenge
Clothing ChallengeStrategy ChallengePhoto Manipulation ChallengeHow to Make Challenge
Milan ChallengeWebsite ChallengeAnnual Awards ChallengeThe One and Only Challenge
Expostitions ChallengeManufacturers ChallengeSurmount Security ChallengeArchitectural Design Challenge
Greatest Artists ChallengeMasters' ChallengeTop Artists ChallengeSeals Challenge
Contests ChallengeDesign Thinking ChallengeExcellent ChallengeLeading Challenge
Pioneers ChallengeBanking Instruments ChallengeResidency ChallengeEnergy Products Challenge
Financial Instruments ChallengeHospitality ChallengeTrophy ChallengeConference Rooms Challenge
Tradefair ChallengeSummits ChallengeWhite Goods ChallengeBlack Goods Challenge
Brown Goods ChallengeMathematics and Nature ChallengeInspirational ChallengeDistrict Challenge
Additionally see: Catalog of Design Challenge | <- Index