What is the largest dome in the world?

The largest dome in the world is the National Stadium of Singapore, which opened on June 30, 2014. It was designed as a sustainable sports arena by Arup Associates and can seat 55,000 guests and spectators.

Located in Kallang, the National Stadium replaced the old National Stadium of Singapore. Its innovative design features a thin, retractable roof and an energy-efficient system for Singapore's tropical weather that can deliver cool air to every seat. Due to its infrastructure, it can accommodate different types of sports and athletic events. It is part of the Singapore Sports Hub, which is an all-inclusive complex with shops, museums and a library.