Look at this humble basement setup.

All right, the Gothic Cathedral ceiling probably cost a bit, and the 2048x1536 pixel projector alone cost $200,000.

But that's just the basics.

Then there is the "Paris in the 1920s" ambience, with streets, a real movie theater with a ticket booth and a stocked concession, see these photos.

Makes you wonder what the rest of the house looks like...

:O)