This is the Dungeon Heart and the treasury from a Minecraft recreation of a whole Dungeon Keeper 2 map. It was built by YouTuber spumwack in survival mode, which means he gathered all the materials by hand. Nicely done! There's many more (annotated) shots in the Imgur album below, showing off the various rooms.
By the end of the 90s, the 16-bit era ended and 3D took over. With the PlayStation and 3D graphics cards out there allowing for new possibilities, narrative and gameplay, the 90s produced some of the most attractive characters in video game history.