The Gateway Arch is a 630 feet high monument and the centrepiece for the Jefferson National Expansion Memorial in St. Louise, Missouri. It is the largest man made architectural arch that has ever been designed. This monument was constructed in order to celebrate the Westward Expansion of the USA. The Arch is situated at the St. Louise Foundation site on the western banks of River Mississippi. Construction for the arch began on the12th of February 1963 and was completed on the 28th of October, 1965. Explore St. Louis while staying at any one of the hotels in Downtown St Louis and uncover the beauty and wonder of the city. An ideal choice would be the Millennium Hotel St. Louis, a finest among the many lavish and hospitable St Louis Hotels that provides star class amenities together with superior service to make your holiday a truly memorable one.