Monte Carlo was a city in Europe. Shortly before travelling to the Gogglebox inside the Moon in the far future, the Fifth Doctor dropped off Peri Brown and Erimem in Monte Carlo in 1966, so they could stop the Veiled Leopard from being stolen. (AUDIO: The Veiled Leopard, The Gathering)

However, shortly before visiting his former companion Evelyn Smythe on Világ, the Seventh Doctor dropped off Ace and Hex in Monte Carlo during the same era and instructed them to steal the Veiled Leopard. (AUDIO: The Veiled Leopard, Thicker Than Water)

In one of her incarnations, Iris Wildthyme played roulette there, which soon developed into an obsession. (AUDIO: Dark Side)

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