When it opened in 2015, the Shanghai Tower—with a height of 2,073 feet—was the second-tallest building in the world, a title it still holds as of 2019. The tower, which is located in Shanghai's Pudong District, is adjacent to both the Jin Mao Tower and Shanghai World Financial Centre, two of the world's other tallest buildings. By far, the tower's most notable architectural feature is the fact that the building twists as it ascends—the top of the building is rotated approximately 120 degrees clockwise from the base. Its 118th floor is home to the second-highest observation deck in the world; the Ping An Financial Center in Shenzhen, China has an observation deck about one foot higher.