High Roller is a 550-foot tall (167.6 m), 520-foot (158.5 m) diameter giant Ferris wheel on the Las Vegas Strip in Paradise, Nevada, United States. Owned and operated by Caesars Entertainment, it opened to the public on March 31, 2014 as the world's tallest Ferris wheel. It is 9 ft (2.7 m) taller than the 541-foot (165 m) Singapore Flyer, which had held the record since 2008. Since October 2021 it is the world's second tallest Ferris wheel after Ain Dubai; however, since the latter’s closure in March 2022, High Roller has resumed its reign as the tallest operational Ferris wheel.