The Millennium Hotel St. Louis, more commonly known simply as the Millennium Hotel, is a defunct hotel complex in downtown St. Louis, Missouri that closed in 2014. The lower complex consists of a plaza and several recreational facilities. Two towers, Millennium Hotel Tower I and Millennium Hotel Tower II, make up the hotel space. Tower I is 28 stories tall and was constructed in 1968. Tower II is 11 stories tall and was constructed in 1974. The building is adjacent to the Gateway Arch. Due to its closeness to several well known landmarks of St. Louis, it has become a popular tourist attraction. The hotel has 780 rooms and 19 suites.