CN Tower, Canada

One of Canada’s most popular and most visited structures, the CN Tower in Toronto’s downtown stands amongst many skyscrapers, showcasing extraordinary beauty and brilliance. This concrete observation and communications tower was built on the former Railway Lands. Built in 1973, the 553-metre-high tower boasted of being the world’s tallest freestanding structure for 32 long years before the top spot was captured by Burj Khalifa. Interestingly, the tower survives an average of 75 lightning strikes per year!

This tower ________.