As seen from 7th street. Every time i see it I'm reminded of the day I took my girlfriend to the Arch and kissed her between the legs...Sorry, old Arch joke.
Here's a little history about the Arch. I snipt this from http://www.nps.gov/jeff/adhi%20Folder/adhi2-13.htm
Some uses of the Gateway Arch have been impossible to control, for example, the unfortunate temptation of aircraft pilots to fly between the legs of the structure. The completed Arch was less than a year old when the first plane flew through on June 22, 1966. Two planes did it in December 1969, on the 12th and 17th. Other flights were made on April 16 and October 8, 1971, November 2, 1977, January 30 and February 5, 1981, and February 26, 1982. By far the most dangerous, the 1977 flight was detailed by the St. Louis Globe-Democrat. The pilot flew at night, without lights, proceeding up Market Street at an altitude of 50 feet, "just above the street lights," through the Arch and on across the river. The danger to people in the Arch, on the grounds, on the streets and in other buildings was very great. A helicopter flew through on April 6, 1984; the pilot was identified and brought to justice by the Federal Aviation Administration (FAA). This flight made a total of eleven confirmed fly-throughs prior to 1991.