Added exceptional design challenges:

 

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

Europe ChallengeGlasses ChallengeHousehold Items ChallengeWomens' Fashion Challenge
Shop ChallengeA.R.E. ChallengeStrategy ChallengeEuropeans Challenge
Product ChallengeAwards ChallengeBlack Graphics ChallengeBlue Services Challenge
Chair ChallengeElectronic Arts ChallengeFood Products ChallengeGray Services Challenge
Idea and Form ChallengeMachinery ChallengeGreat ChallengeOffice Challenge
Restaurant Interiors ChallengeSponsorship ChallengeToys ChallengeTypography Challenge
Idea ChallengePhoto Manipulation ChallengeCostume ChallengeCreation Challenge
Museums ChallengeAwards' ChallengeHigh Quality Design ChallengeInspiring Challenge
Professional Designer ChallengeProfessional Architects ChallengeProfessional Artists ChallengeColloquium Challenge
Trophy ChallengeTransparent Goods ChallengeColorful Goods ChallengeMathematics and Nature Challenge
Additionally see: Catalog of Design Challenge | <- Index