Vitamin D -- specifically the form D3 -- is the only vitamin your body makes itself. It's fat-soluble, which means your body stores vitamin D in its adipose tissue -- in its fat. And, if you want to be specific about things, this vitamin is actually a hormone.
Sullivan's Castle Island, South Boston, MA, Est. 1951. Castle Island. Located at the end of Carson Beach, on Pleasure Bay in South Boston, Castle Island is a 22-acre recreation site, and the site of Fort Independence. Castle Island was really an island until several land reclamations through the years extended causeways and eventually roadways.
Castle Rock, Maine. Castle Rock is a town located in the state of Maine. According to one map, the town is situated just south of the towns of Mexico and Rumford in central Oxford County. Other references, however, place the town in Castle County. Ray Fiegler, who lost a fishing boat to Duke Crocker, lived in Castle Rock.