Spirits feel right at home, and have no fear showing themselves either during the day or night.
Present day volunteers and employees who wear period costumes must make spirits feel at ease.
Some may not know that they are dead. They go about their duties, even interacting with the living.
Besides spirits of soldiers, and spirits of civilians who worked here, spirits of WW 2 Jewish refugees also stay where they died, still hoping to find a home in America.