High Quality Content by WIKIPEDIA articles! The Newby-McMahon Building, commonly referred to as the world’s littlest skyscraper, is located at 701 LaSalle Street (on the corner of Seventh and LaSalle Streets) in downtown Wichita Falls, Texas. This late Neoclassical style red brick and cast stone structure is 40 ft (12 m) tall, and its exterior dimensions are 18 ft (5.5 m) deep and 10 ft (3.0 m) wide. Its interior dimensions are approximately 12 ft (3.7 m) by 9 ft (2.7 m), or approximately 108 sq ft (10.0 m2). Steep, narrow, internal stairways leading to the upper floors occupy roughly 25 percent of the interior area.