After a five-day closure, the CN Tower re-opened on Friday afternoon.

The Tower was originally closed Monday after melting ice chunks began falling from it, punching a hole in the Rogers Centre roof and prompting the postponement of a game between the Jays and the Kansas City Royals. (The two teams faced off the following day in a double-header.)

The Ripley’s Aquarium was also closed. The aquarium had a photo of Vanilla Ice on its large electronic billboard this week, informing passersby of its closure with the warning, Ice Ice Baby. Other closures included Bremner Blvd., between Lower Simcoe St. and Rees St., and the John St. extension over the railroad tracks near Union Station, police said.

As the weather warmed over the course of the week, the area had to remain closed as ice continued to fall from the CN Tower, Toronto Police said.

Closures are rare for the Tower. Even an electrical fire that burned through one of the CN Tower’s antennas last August wasn’t enough to close the 553-metre tower, now the third tallest free-standing tower in the world.

Just hours after firefighters got the early-morning phone call about the fire, the tower announced it would still be open for business that day.

Police said they have “greatly appreciated” the public’s patience with the closure due to the ice.

“While everyone is eager to return to normal business operations, the safety of the public must be the number one priority,” police said in a statement.

This was not the first time the roads around the CN Tower were closed because of falling ice. In March 2007, the surrounding roads were closed for several days after chunks of ice began breaking off the walls of the tower, creating havoc below.

There was so much ice built up back then that one of the chunks appeared to be roughly 50 metres tall by six metres wide.

The CN Tower has also been closed for security purposes. In 2010, the tower shut down for two days because of security concerns during the G20 summit. A fence was also installed around the popular tourist attraction.

During the 9/11 terrorist attack, the CN Tower was among the city’s landmarks closed as a security precaution.

The blackout that hit North America’s electrical grid in 2003 also left the CN Tower dark, forcing it to close for two days.

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The tower was closed for two hours in October 1990 after a man was found dangling from the outdoor observation level. He was later pulled back in to safety when a woman, believed to be his girlfriend, talked to him. It was the first such incident in the history of the tower, an official said at the time.

The tower is Toronto’s biggest lightning target. It gets struck an average of 75 to 80 times a year. But in August 2011, it was zapped 52 times in 84 minutes. The tower has long copper strips connected to 52 grounding rods to take the charge.

In May 1976, just over a month after the CN Tower’s opening, lightning strikes caused destruction to 53-centimetre thick fibreglass moulds, causing $25,000 in damage.