The CN Tower, located in downtown Toronto, Ontario, Canada, is a communications and observation tower standing 553.33 metres (1,815.4 ft) tall. It surpassed the height of the Ostankino Tower while still under construction in 1975, becoming the tallest free-standing structure on land in the world. On September 12, 2007, after holding the record for 31 years, the CN Tower was surpassed in height by the still-under-construction Burj Dubai. It remains the tallest free-standing structure in the Americas, the signature icon of Toronto's skyline, and a symbol of Canada, attracting more than two million international visitors annually.
CN originally referred to Canadian National, the railway company that built the tower. Following the railway's decision to divest non-core freight railway assets, prior to the company's privatization in 1995 it transferred the tower to the Canada Lands Company, a federal Crown corporation responsible for real estate development. Since local residents wished to retain the name CN Tower, the abbreviation is now said to expand to Canada's National Tower rather than the original Canadian National Tower; however, neither of these names are commonly used.
In 1995, the CN Tower was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers. It also belongs to the World Federation of Great Towers.
Rogers Centre, formerly known as SkyDome, is a multi-purpose stadium in Toronto, Ontario, Canada, situated next to the CN Tower near the shores of Lake Ontario. Originally opened in 1989, it is home to the American League's Toronto Blue Jays, the Canadian Football League's Toronto Argonauts, the site of the annual International Bowl American college football bowl game, and as of 2008, the National Football League's Buffalo Bills' second playing venue in the Bills Toronto Series. While it is primarily a sports venue, it also hosts other large-scale events such as conventions, trade fairs, concerts, funfairs, and monster truck shows. The stadium was renamed "Rogers Centre" following the purchase of the stadium by Rogers Communications in 2005.
The venue was noted for being the first stadium to have a fully-retractable motorized roof, as well as for the 348-room hotel attached to it, with 70 rooms overlooking the field. It is also the most recent North American major-league stadium built to accommodate both football as well as baseball, although some of the newer baseball parks have been known to host the occasional college football game (AT&T Park, Chase Field, and Safeco Field, to name a few).