Gateway Arch National Park is an American national park located in St. Louis, Missouri, near the starting point of the Lewis and Clark Expedition.
In its initial form as a national memorial, it was established in 1935 to commemorate:
the Louisiana Purchase and subsequent westward movement of American explorers and pioneers;
the first civil government west of the Mississippi River; and
daily 8 am - 5 pm in winter
(except 26 Nov, 25 Dec and 1 Jan)
7.30 am - 8 pm in summer
free admission
Wikipedia https://en.wikipedia.org/wiki/Gateway_Arch_National_Park
Official website http://www.nps.gov/jeff/index.htm
Phone +1 314 655 1700
Address 11 North 4th St, St. Louis, MO 63102, USA
Coordinates 38°37'28.753" N -90°11'8.012" E