What will the cities of the future look like?

The United Nations (UN) predicts that around 70% of the world's population will live in cities by the year 2050. A mass migration of this scale will exacerbate the global housing crisis. It's clear that forward thinking or vertical-centric solutions are needed if we're to cope with high population volumes in our city spaces. With this in mind, here are three conceptual projects that envision the vertical future of urban living.