Heller International Building Heller International Building The Heller International Building is a skyscraper in Chicago, Illinois. The building rises 600 feet (183 m) in Chicago's Near West Side neighborhood. It contains 45 floors, and was completed in 1992. The Heller International Building currently stands as the 44th-tallest building in the city. The architectural firm who designed the building was Skidmore, Owings & Merrill, the same firm who designed Chicago's Sears Tower and John Hancock Center and the Burj Khalifa in Dubai. The Heller International Building currently stands as the tallest building in Chicago situated west of the Chicago River. One year after its
Tower Petroleum Building Tower Petroleum Building The Tower Petroleum Building (also known as The Tower Building) is a historic Art Deco Skyscraper located at 1907 Elm Street in the City Center District of Downtown Dallas. The tower, a contributing property in the Dallas Downtown Historic District and the Harwood Street Historic District, features Zig-zag Moderne styling and was designed by architect Mark Lemmon. The Tower Petroleum Building features Zig-zag Moderne motifs, one of the few buildings left in Downtown Dallas which features such designs. The building's facade is clad in limestone and has green spandrels panels between the windows. The upper floors of