London UFO crash

The London UFO crash was the name BBC News gave to an incident in March 2006 which saw the destruction of Big Ben at the hands of a UFO which seemingly crashed into the River Thames in central London. (TV: Aliens of London/World War Three)

Elton Pope, while shopping for a suit, was among the bystanders that witnessed the crash in London. He initially mistook the ship for a plane. (TV: Love & Monsters)

Parallel universes
In a parallel universe, Rose Tyler found that no spaceship crashed into Big Ben. (AUDIO: The Endless Night) She later determined that the ship did not appear in at least one other universe. (AUDIO: The Last Party on Earth)