CN Tower No 5.

After 5 years of planning, construction on the CN Tower began in 1973 and at a cost of $63,000,000 CDN, the 553.33 m (1,815.4 ft) tower was completed in 1976 and became the world's tallest free standing structure, a record it held for 34 years.

Canon EOS 60D
Sigma 17-70mm f2.8 DC Macro OS
Silver EFEX Pro

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