Finishes: Colors & Stains

It's certainly doable, but it's a pain nonetheless. There must be an easier way. Luckily, using today's technology, there is. To do it the modern way, you would definitely go with concrete.

Yes. Among the Egyptian Pyramids of Giza, the Pyramid of Khufu allows tourists to visit the inside, and the only passageway is from the Grand Gallery to the King's Chamber.