This document provides information on two mixed-use high-rise building case studies: Mecenatpolis in Seoul, South Korea and Brickell City Centre in Miami, Florida. Mecenatpolis is located near a train station and consists of residential towers, office space, retail space and public gathering areas with an organic design. Brickell City Centre contains residential towers, a hotel, office space, shopping center and a large glass and fabric structure to create a microclimate and help with energy efficiency. Both projects aim to achieve LEED certification and incorporate sustainable design features.