what is the millennium dome now known as?

The Millennium Dome, which was originally constructed to house the Millennium Experience exhibition celebrating the turn of the third millennium, is now known as The O2. It was rebranded and repurposed as a major entertainment complex that includes an indoor arena, a music club, a Cineworld cinema, an exhibition space, piazzas, bars, and restaurants. The O2 arena within the dome structure is one of the world's busiest music arenas, hosting concerts, sports events, and other large-scale events.

Extra: The Millennium Dome is located on the Greenwich Peninsula in South East London, England. Its construction was completed in 1999, and it was opened to the public on January 1, 2000. Following the Millennium Experience exhibition, which ended in December 2000, the future of the dome was uncertain for a while. However, in 2005, a major redevelopment plan began, and by June 2007, the site was transformed into The O2 and opened to the public. The structure's iconic appearance, which features twelve large yellow support towers representing the twelve months of the year, or as a clock face, is a famous part of London's skyline. The interior of The O2 Arena can seat up to 20,000 people and the venue has hosted many high-profile events, including the ATP World Tour Finals in tennis and the 2012 Summer Olympics gymnastics events. It has become a symbol of the regeneration of the area from industrial to entertainment and residential use, playing an important role in the ongoing development of the Greenwich Peninsula.