The reflective surface of the Vdara hotel in Las Vegas concentrates the sun’s rays into a “death ray” that creates dangerously hot areas around the pool.
There is a “heavy equipment playground” in Las Vegas where you can drive bulldozers for fun.
In 1964, a wealthy businessman, fearing nuclear war, built a massive 16,500 square foot mansion underneath Las Vegas complete with pool, even putting green and luxury finishes.