10. Roppongi Hills, Japan
Roppongi Hills is an integrated development constructed by Minoru Mori.
It consists of office space, residences, restaurants, cafes, movie theatres, a museum, a hotel, retail, and parks.
The centrepiece of this project is Mori Tower, which is a 54-storey building that houses an art museum, clinics, stores, the offices. The cost of the project is $4 billion.