The museum’s various levels were comprised of vast caverns linked by a network of subterranean streets, tunnels, staircases, elevators, escalators, ladders, slides, trapdoors, and secret passageways. It was like a massive underground multilevel labyrinth. The layout made it extremely easy to get lost, so I kept a three-dimensional holographic map on my display. My avatar’s present location was indicated by a flashing blue dot. I’d entered the museum next to an old arcade called Aladdin’s Castle, close to the surface. I touched a point on the map near the core of the planet, indicating my destination, and the software mapped the quickest route for me to get there. I ran forward, following it.