Thanks Rpmdrd, besides hot and humid it is quiet and serene, I was the only person there. There are a few houses nearby and the main cell block backs to a business. It's located in Garapan which is the largest village on the island but it is definately off the beaten path. It wasn't creepy until I crawled into a cell. You have to climb down about a meter through a small door. Most of the cells have a lot of vegetation in them and they are quite small.
Thanks Late Developer, I know the Japanese did not treat the native Chomorro and Carolinians very well but other than the Jail I don't think they had POW camps here. One of the reasons Guam and the CNMI are separate territories has to do with what happened during the Japanese occupation. On Saipan the Japanese convinced the Chomorro to teach them their native language. The Japanese then used that knowledge against the Chomorro on Guam. After the war there was still animosity about that. I don't think it's much of a problem any more.
Things are about to get interesting here this weekend, there's a typhoon heading toward the islands. Even if we don't have a direct hit there will be a lot of wind and rain. We're starting to see the first bands of rain right now.