SCIENCETECH · HISTORICAL MARKER

The Chicago Skyline

Science & Tech
4
Indiana Dunes' beaches offer spectacular sunset views that can include Chicago's skyline in the distance, 32 miles away. The Willis Tower, formerly Sears Tower, rises 1450 feet with 100 stories, and its 275-foot antennas are normally white but change colors in March, May, July, October, and December. The Trump International Hotel and Tower, also known as Trump Tower, stands 1362 feet tall with 92 stories and occupies the site of the old Chicago Sun-Times building. The Aon Center reaches 1236 feet with 83 stories, and its marble exterior was replaced between 1989 and 1992 with granite from North Carolina at a cost of over 60 million dollars. The John Hancock Center stands 1129 feet tall with 100 stories, and its distinctive exterior cross-bracing eliminated the need for support beams, greatly increasing usable floor space. The sunset's position shifts about 64 degrees north to south during the year, and the sun sets over Chicago around the middle of May and July. The summer solstice, the longest day of the year, brings 15 hours and 12 minutes of sunlight, while the winter solstice, the shortest day, brings only nine hours and 10 minutes.
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