This custom installation, documented on Imgur, shows a hot tub mounted in the floor near a fireplace. It can be completely hidden under a “walk on” cover and an area rug.
This solid oak dresser, being sold on Armslist, includes a secret compartment under the lift-up top that can conceal knives, guns, jewelry, or other valuables.
This custom mahogany dresser featured on LumberJocks includes a large fold down compartment in the rear. It’s not easy access, but it would be an inconspicuous hiding spot for long term storage of valuables.