The London Eye is a 443-foot tall Ferris wheel located in central London along the River Thames, consisting of 32 air-conditioned capsules that hold 32 people each and provide 30-minute trips offering panoramic views of London. On clear days, passengers can see as far as Heathrow Airport and Windsor Castle from the rotating capsules. At night, landmarks like Big Ben, Westminster Abbey, and Tower Bridge are illuminated against the darkened city landscape.