The London Eye is the landmark used for London’s official New Year’s Eve midnight fireworks display.
The Ferris wheel stands on the South Bank of the River Thames opposite Westminster, giving fireworks designers a prominent central structure around which to organize the show. London’s large public display uses the riverfront, nearby bridges, and the skyline as part of its visual setting, with the London Eye serving as the best-known focal point.
The modern ticketed central London fireworks event developed in the 2000s and became a major annual broadcast spectacle. Fireworks are launched from positions around the wheel and along the Thames, while crowds gather in designated viewing areas. The event is separate from the clock tower commonly called Big Ben, although Big Ben’s midnight chimes are closely associated with the countdown.
Thus, “Big Ben” is a plausible neighboring answer but not the landmark that defines the fireworks display itself. The official name of the wheel is the London Eye.