Ngee Ann City has two office towers, Tower A and B which are both 26 storeys high. Among its many shops are the Takashimaya department store and Kinokuniya, the second-largest bookstore in Southeast Asia. Until 2007, it housed the library@orchard, part of the National Library Board on the 5th floor. Ngee Ann City is also home to the largest Best Denki in Singapore, known as Big Best. In 2005, the shopping mall opened an art and creativity section on the 4th floor called iFORUM, the first of its kind in Singapore.