Louis Walsh and Sharon Osbourne take the Groups to Vegas, Nicole Scherzinger and Ne-Yo mentor the Boys in Dubai, Tulisa and Tinie Tempah take the Girls to St Lucia and Gary Barlow judges the Overs in Kettering with Cheryl Cole.
X Factor Judges' Houses 2012 - Photo gallery:
When the Overs' destination is revealed by a butler, Christopher Maloney exclaims: "I couldn't really understand the butler so I don't really know where we're going but yeah I can't wait - wherever we're going!"
The Girls category are delighted when they discover that they have Tulisa as a mentor in St Lucia. Speaking to her hopefuls, last year's winning judge says: "I am so excited I have got this category. Every single one of you is so talented, but I can only take three through to the finals."
Sharon Osbourne offers some words of warning to the Groups in Vegas, telling them: "Superstars from all over the world perform here. You too could be a part of this one day. This is the biggest opportunity you will ever have for your careers, do not waste it."
Meanwhile, Cheryl Cole takes a sympathetic approach with the Overs, advising: "I've been there and I have been here so I know how you are all feeling. I am just excited to see what you have got. Think it's going to be amazing and I wish you the best of luck from the bottom of my heart."
The X Factor Judges' Houses air tonight (Saturday, September 29) on ITV1.