Aleea Stadionului Nr 2Cluj Arena is a multi-purpose stadium in Cluj-Napoca, Romania. It serves as the home of Universitatea Cluj of the Liga II and was completed on 1 October 2011. It is also the home of the Untold Festival. The facility, owned by the county council of Cluj, can also be used for a variety of other activities such as track and field events and rugby union games. It replaced the Stadionul Ion Moina, which served as Universitatea Cluj's home from 1919 until the end of the 2007/2008 season.
The stadium seats 30,201, making it the fifth largest stadium in Romania by seating capacity. It has four two-tiered stands, all of them covered. The seats of the stadium are grey.
The building is located west of Central Park, and next to the Someșul Mic river and the BT Arena.
The first stadium for football and track and field was built from 1908 to 1911. The Stadionul Ion Moina was opened in 1911, consisting of a single wooden stand with a capacity of just 1,500. The first game at the new stadium was a friendly against Turkish team Galatasaray, which Cluj won 8–1.
New wooden stands are built as well in 1961, increasing the capacity to 28,000. The stadium was named for Ion Moina, the fastest sprinter in Europe in 1948.
Demolition officially began on 20 November 2008.
Construction began on July 16, 2009. The stadium was expected to be completed by July 2011. By July 2011, the stadium was 90 percent complete. The stadium opened its gate for the public on 1 October 2011. Eight days later, Scorpions performed at the stadium. The show was sold out with a crowd of 45,000. The next day, Smokie played at Cluj Arena.