Hibernation during harsh winters
Hologram nature shows
From the outside it looks like an old tower but on the inside you find an elevator system with a robotic arm that stocks the hibernation capsules. These capsules contain humans that are in a hibernation sleep. People that are sent into hibernation, turn into a comatose condition in which all the inner body functions are limited. Inside the capsule the organs are taken over by a biological computer. They use the technology to overcome harsh winters.
The spiritual community has some very well-known hologram theaters. The majority of the shows focus on nature, health, spiritual and philosophical topics.