The London Eye is a giant Ferris wheel on the South Bank of the River Thames in London. It is Europe's tallest Ferris wheel; the structure is 135 m (443 ft) tall and the wheel has a diameter of 120 m (394 ft). County Hall (on the right) was the headquarters of London County Council and later the Greater London Council. Today, County Hall is the site of businesses and attractions, including the London Sea Life Aquarium, London Dungeon and a Namco Station amusement arcade. Other parts of the building house two hotels, several restaurants, and some flats.