Platform Three
From Tardis Wiki, the free Doctor Who reference
Platform Three was an observation space station in the year 5,000,000,000. When Platform One shook violently due to the sabotage of metal spiders, the Steward said to Control, "I've hosted all sorts of events on Platforms One, Three, Six and Fifteen, and I've never felt the slightest tremor". (TV: The End of the World)