Construction work has resumed on Jeddah Tower in Saudi Arabia, a skyscraper designed by Chicago-based studio Adrian Smith + Gill Gordon Architecture, which is expected to become the world's tallest building.
Source: https://www.dezeen.com/2023/09/22/construction-restarts-jeddah-tower/Jeddah Tower will hold a Four Seasons hotel, residences, offices as well as the world's highest observation deck on a constructed building. The first images of the prospective tower were released in 2011, and ground was broken in 2013, but the project has been harried by constant starts and stops.