The Akihabara Radio Kaikan (秋葉原ラジオ会館, Akihabara Rajio Kaikan), Akihabara Radio Hall is a commercial building in Tokyo, Japan and is one of the most well-known landmarks in the Akihabara district. The recent building was built in 2014 after the old building was demolished in 2011. The building is 46.5 m high, is ten levels from the ground floor and has two basement levels. The current building primarily hosts stores selling otaku goods. (Wikipedia)
The building plays a prominent role in the Steins;Gate franchise.