Preserved under and behind glass are two kilns used by the Roman Tenth Legion 1,900 years ago.
If you wouldn't mind, click and enlarge this and the other photos of signs. They tell the whole story.
I read elsewhere that the Romans added the unclean, traif, unkosher boar/pig just to anger the Judean subjects of Caesar. Maybe . . .
Here is how the tiles were hung on a slanting roof.
Here's how the tiles were manufactured.
Much like the sauna in today's Northern countries, the Roman bathhouses served as a social meeting place. The Legionaries built, used, and maintained them.
Pillars of round or square bricks supported the floor of the caldarium, the room with a hot plunge bath.
Hot air from a furnace circulated under the floor and in hollow bricks in the wall, heating the caldarium.
Trapezoidal bricks were designed especially for arches and vaulted ceilings.
Each segment fit snugly into the other, forming pipes to carry either water or sewage. The pipes could stretch for miles.
Thankfully, the Roman soldiers in Jerusalem knew how to build as well as do battle. And thankfully, the Israel Antiquities Authority had the good sense and the vision to preserve part of this site right here in the middle of modern Jerusalem.