As of 2026, the location of the world's tallest slide depends on whether you mean a water slide or a "dry" slide. The world's tallest water slide is currently Kilimanjaro, located at the Aldeia das Águas Park Resort in Barra do Piraí, Brazil. It stands at a staggering 164 feet (49.9 meters) tall and sends riders down at speeds exceeding 60 mph. (Note: The former record-holder, Verrückt in Kansas City, was permanently closed and dismantled). If you are looking for the tallest dry slide, the title belongs to the The Slide at the ArcelorMittal Orbit in London, UK, which drops 178 meters (584 feet) in a series of twists. For a more "traditional" playground-style dry slide, RIVERSPORT OKC in Oklahoma, USA, hosts one of the tallest complexes in the world with slides reaching 80 feet high. These records are frequently challenged by new "mega-park" developments in the Middle East and China, so it is always a good idea to check for the very latest "Guinness World Record" update before planning a trip for a specific world-record thrill.