The commercial-residential complex of Roppongi Hills opened six years ago, boasting offices, a museum, cinema, condominiums, restaurants and shops, becoming a popular tourist destination and a high-status residence in a part of central Tokyo otherwise known for its nightlife dens.

The complex became a symbol of developer Mori Building Co.'s concept of an urban center of work, culture and residence coexisting. Visitors continue to come for the movies and the fine dining, as well as the shopping at the many luxury brand boutiques. The complex is also a favorite hangout after work for employees of the tenant companies in the 54-story Roppongi Hills Mori Tower.

Following are questions and answers about Roppongi Hills: