By the year 2050, 75% of us will live in cities. How will we live, work, and breathe? The city-state of Singapore has been grappling with that very question for decades. Now celebrating 50 years as an independent nation, and home to more than 5 million people, with literally nowhere to grow, its leaders are looking for new ways to tackle the challenges of rapid urbanization and an aging population. CNN's Future Cities goes inside major infrastructure projects that are in the pipeline, and meets the people and planners behind them, in order to learn about their vision and the challenges of planning for the future.

Originally released by CNN, 2015. Streaming video file encoded with permission for digital streaming by Infobase on March 28, 2019.

Vertical Integrated City (4:17); --Jurong Island (4:41); -- Aging Demographic (3:49); -- Changi Airport (3:18); -- Student Projects (5:06); -- Credits: Future Cities Singapore (0:13); .