AT&T Center turns 17 years old this year, but it already has an extensive history. You could make the cast that it was built at the behest of Tim Duncan, who wanted the San Antonio Spurs to have their own arena should he re-sign with the team during his 2000 free agency scare. It opened in 2002 to much grandeur, being a significantly better home than the cavernous Alamodome divided in half by a curtain to make it more basketball-friendly. Its first season was capped off with the Spurs celebrating their second of five championships in its shiny, new halls.