Unity Arena, previously known as Telenor Arena and Fornebu Arena, is a multi-purpose indoor arena located at Fornebu in Bærum, outside Oslo, Norway. It serves as a venue for a variety of events, including concerts, exhibitions, action shows, family shows, TV and sport. It has a capacity for 15,000 spectators for sports and 25,000 for concerts, including 40 luxury boxes and club seating for 1,200. The venue has a fixed roof and an asphalt floor. The venue was opened ahead of the 2009 Norwegian football season as a replacement for Nadderud Stadion. It cost 585 million Norwegian kroner (NOK) to build, of which NOK 300 million was for the sports venue. The arena hosted the 2025 World Men's Handball Championship with the country, Croatia and Denmark, including the final.