The 10 biggest building announcements of 2025

From record-breaking skyscrapers and stadiums to stalled projects, here are the 10 most significant architecture announcements of the year as part of our Review of 2025.Image courtesy of Adrian Smith + Gordon Gill Architecture/Jeddah Economic Company
Jeddah Tower, Saudi Arabia, by Adrian Smith + Gordon Gill Architecture
Formerly known as Kingdom Tower, Jeddah Tower is aiming to become the tallest building in the world, reaching at least a kilometre into the sky.
It was initially supposed to