The London Eye

The London Eye is a giant Ferris wheel on the South Bank of the River Thames in London. Also known as the Millennium Wheel,

The entire structure is 135 metres (443 ft) tall and the wheel has a diameter of 120 metres (394 ft). When erected in 1999 it was the world's tallest Ferris wheel. Its height was surpassed by the 160 m (520 ft) Star of Nanchang in 2006, the 165 m (541 ft) Singapore Flyer in 2008, and the 167.6 m (550 ft) High Roller (Las Vegas) in 2014. Supported by an A-frame on one side only, unlike the taller Nanchang and Singapore wheels, the Eye is described by its operators as "the world's tallest cantilevered observation wheel"