Largest television game show set

The Crystal Maze (UK, Chatsworth Television/Channel 4, 1990-1995) boasted the world's largest set for a gameshow - and was, at the time, the largest TV set in Europe. Technically not a maze but a set of four interconnected "time zones", the Crystal Maze was the size of two football pitches and cost in the region of £250,000 to build. The first series was filmed in Shepperton Studios - at the time, the only studio large enough to house such an audacious set - but moved to a disused aircraft hanger in North Weald to the northeast of London for series two onwards. The four zones were: "Aztec", "Futuristic", "Medieval" and "Industrial" (which was later changed to "Ocean"). The game's finale was played inside the Crystal Dome, a pentakis dodecahedron (60-faces if completed). It enjoyed a spell as Channel 4's most watched TV show, drawing in a viewership upwards of 6 million.