It’s a fortress full of art.

As the art market has grown, particularly at the highest end, so too have “artports” — storage facilities specifically made for art, built to exacting conservation standards and outfitted with high-end security.

Many artports are located in well-known tax havens, including Switzerland, Luxembourg and Delaware. Some have been reported to hold tens of billions of dollars worth of artwork.

Here, 19 feet above sea level, outside of the hurricane surge and flood zones, New York City has a fine art storage facility of its own.