I am a show that features a group of strangers living together in a house, but with a unique twist. Each week, the housemates compete in challenges, and they have the power to nominate and evict each other. The stakes are high, as the winner receives a grand prize.

1. The show's name is a metaphor for a type of living space.
2. It involves both physical and mental challenges.
3. The show has produced multiple spin-offs.
4. The show has run for over 20 seasons.