outdoor 1 Liked! 0 Disliked 0 ‘The 7th Room’ is the world’s most luxurious tree house (7 Photos) by: Staff In: Architecture, Nature, Outdoor Jan 23, 2017 1 Liked! 0 Disliked 0 1 Welcome to the ‘The 7th Room’, the most luxurious treehouse you will ever see. Like this post? 1 Liked! 0 Disliked 0