Second Leiter Building Second Leiter Building The Second Leiter Building, also known as the Leiter II Building, the Sears Building, One Congress Center, and Robert Morris Center, is located at the northeast corner of South State Street and East Congress Parkway in Chicago, Illinois. The building is not to be confused with the present Willis Tower, formerly the Sears Tower, constructed and owned by the famous nationwide mail-order firm Sears, Roebuck & Company. This landmark of the Chicago school of architecture gained fame for being one of the earliest commercial buildings constructed with a metal skeleton frame remaining in the United States. Built
Chicago Water Tower Pumping Station, it drew clean water from water cribs in Lake Michigan. The tower gained prominence after the Great Chicago Fire of 1871. While some incorrectly believe that the tower was the only building to survive the fire, a few other buildings in the burned district survived along with the tower. The tower was the only public building in the burned zone to survive, and is one of just a few of the surviving structures still standing. In the years since the fire, the tower has become a symbol of old Chicago and of the city's recovery from the fire.