The Pittsburgh's Civic Light Opera first debuted - a performance of Victor Herbert's Naughty Marietta - in December 1946 at Pitt Stadium, six blocks from the Duquesne Gardens.

Frustrated with rain cancellations the CLO would seek a venue of its own.

On December 1, 1944 department store magnate Edgar Kaufmann and city councilman Abe Wolk declared the the city would need a new amphitheater with a 'removable' roof – two years before the CLO formed.

Four years later on February 4, 1949, Kaufmann and the city each pledged $500,000 for construction, and the search for a site began.

In February 1950, Kaufmann revealed plans for a 10,500-seat "umbrella amphitheater," drawn by architects James A. Mitchell and Dahlen K. Ritchey. The design included two, motorized "bat-like" wings for a roof. The wings were to be made out of fabric-coated plastic attached to a cantilevered, steel arm. Kaufmann pledged an addition $500,000

Schenley Park was origianlly considered, but an Allegehny County judge upheld legal opposition to that site.

Pittsburgh’s rebirth, directed by Mayor David L. Lawrence, came in the form of Renaissance I. Lawrence spear-headed a plan to give the CLO and Pittsburgh Hornets a new facility and to give Pittsburghers a multi-purpose facility.  Lawrence briefly pitched a plan to to put the arena at the city's Point, possibly in the area where the old Winter Garden was located.

The result was the Civic Auditorium - later named the Civic Arena. It was nicknamed “The Igloo” by the locals.

In 1951, the Urban Redevelopment Authority's revealed a plan to re-develop a tract of land in Pittsburgh’s Lower Hill District. The area was supposed to include a multipurpose arena, a 935-family apartment complex, a motel, a parking garage and an art museum.

Civic Light Orchestra Concert Stage, with two dome leaves retracted.		Open for Business Pittsburgh Mayor Joseph M. Barr and Hornets owner John Harris (founder of the Ice Capades) made the skating show the feature act of the Civic Arena’s grand opening on September 19, 1961. The roof did open - two leafs opened - for the Ice Capades, but fears the 205x85 feet ice would melt under the 74-degree fall day forced the dome closed after 22 minutes. The Pittsburgh Hornets emerged from five years of inactivity when they played their first game at the arena, a 2-1 loss to the Buffalo Bisons, on October 14, 1961, in front of 9,317 fans. The first Hornets' goal at the Civic Arena was scored by Paul Jackson (right) - his only goal of the season. The 1961-62 Hornets set many AHL records in that season:  Most times shut out in a season (9); most games lost in a season (58) and most games lost at home (27).
In February 1967, the Igloo would inspire the name of the Pittsburgh Penguins who were granted an NHL expansion team to replace the AHL Hornets, who played their last game in the arena on April 30, 1967, when they beat Buffalo in the Calder Cup Final. On April 30, 1967, Pittsburgh finished the sweep of two-time defending champion Rochester Americans in the Calder Cup Finals after Billy Harris scored :26 seconds into overtime in what would be the last goal in Pittsburgh Hornets’ history. It remains as the only time a professional hockey championship was won inside the city of Pittsburgh. The Penguins played their first game at the Civic Arena when they lost to the Montreal Canadiens, 2-1, on October 11, 1967.  The arena's capacity was 12,580 and the most expensive seat was $5. Andy Bathgate scored the Penguins’ first goal in that game – the first NHL goal in Pittsburgh in more than 37 years. On May 4, 1968 the Pittsburgh Pipers won the first ABA championship after defeating the New Orleans Buccaneers 122-113. The Pipers had the league's best record during the regular season (54-24, .692). The Pipers played one more year at the arena and then played two seasons as the Pittsburgh Condors, before folding in 1972. The last CLO show at the Civic Arena was "How Now, Dow Jones" on July 26, 1969. The CLO moved to Heinz Hall, leaving the Pittsburgh Penguins as the anchor tenant of the arena.

•  In 1999, Pittsburgh-based Mellon Bank purchased the naming rights to the building and renamed it Mellon Arena.

• On August 25, 1994 the Civic Arena roof opened to the Space Odessy theme song while the Phantoms played the Minnesota Arctic Blast. It was the first time the stainless steel dome was opened for a professional hockey game.

• Letter Of Application to The Bureau of Historic Preservation was filed on July 6, 2001.

Two separate power outages put Mellon Arena in the dark during the Penguins' game with the Toronto Maple Leafs on March 19, 2006.

Emergency crews were called to the Igloo after an electrical fire was reported in the area around Gate 2.

The arena's emergency lighting system came on and the hockey came to a halt. Play resumed a short time later.

The Pittsburgh Tribune-Review reported that fans chanted "New Arena...New Arena" during the first delay. When partial power was restored, but before play resumed, the JumboTron showed a promotional clip for the Isle of Capri's plan to build a $290 million arena - at no cost to taxpayers - if the casino is awarded the city's sole slots parlor licence.

On June 20, 2008, Bank of New York Mellon Corp. agreed to extend its naming rights deal to Mellon Arena by one year.

The extension was necessary because a 10-year naming rights deal between the hockey team and former Mellon Financial Corp. expires after the 2008-09 season.

The Penguins' new $290 million arena won't be open until the 2010-11 season.
The initial 10-year deal was worth about $1.8 million annually.