The hotel contained 476 rooms and 27 suites for a total of 503, a small number in comparison to other Las Vegas resorts, which commonly had 1,000 rooms. The tower included 157 hotel rooms, while the remaining units were located on ground level. The tower used an octagonal floorplan, and the rooms in the tower used a layout that had them shaped like pie slices. By 1977, the room count had increased to 524, before ultimately being lowered to 498 at the time of the Landmark's closure in 1990. The Landmark's interior designer was Las Vegas resident Leonard Edward England, who designed the ground floor to include a colorful and primitive Incan theme, which gradually changed to a Space Age theme on subsequent floors. The interior included $200,000 light fixtures, glowing, red-colored Incan masks, and a burnished metal wall sculpture representing a Cape Kennedy launch. The interior also included 65 tons of black and white polished marble, and carved mahogany woodwork from Mexico. In addition, the interior featured murals depicting the eight Wonders of the World, which included the Landmark tower. After Hughes agreed to purchase the resort, he had an island built in the middle of the hotel's 240-foot swimming pool, which cost $200,000 and was the longest in the world. The Landmark's pool included waterfalls and three carpeted bridges leading to its center island, which featured palm trees. For the hotel, Hughes replaced 72-inch beds with 80-inch beds and had color televisions built into the walls of each room ahead of the resort's opening. The Landmark's second floor was used for offices. The tower's dome included five floors, although floors 26 and 30 were used by employees for maintenance equipment, elevator equipment, and dressing rooms. The shape and strength of the tower's bubble dome was maintained by perlite concrete and steel girders. The Landmark included a high-speed exterior glass elevator, which took people up to the five-story cupola dome. The elevator was located on the tower's west side, facing the Las Vegas Strip. It was capable of moving 1,000 feet per minute, allowing people to go from the ground floor to the 31st floor in 20 seconds. It was the fastest elevator in the Western United States. Hughes biographer Michael Drosnin stated that the elevator was prone to constant malfunctions, and that the Landmark's air-conditioning system "never really worked." The dome provided wraparound views of the city, and