Temples (Structure)

This is a structure that came to me while watching a Minecraft video. It would be present in deserts, mines and jungles. They would be underground, and would require the player's ability to avoid dangers, since they would be in ruins. Depending on the biome, they would have a different skin and different loot (example: mine temples have a mineral-based loot). They would have a low probability of appearing, since they would appear once every 4000 chunks and if the biome where they will appear is one of those mentioned above. This would encourage exploration, as it would reward the player's long journeys with a good loot. NOTE: There would be beds in the structure, so that it would not be frustrating to die. Could this also emphasize the use of the regeneration compass? I do not know it very well...