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, and as of 2021 is the world's second 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.