Last year, a new team was brought in to rethink the prospects for this privileged three-and-a-half-acre site overlooking New York Harbor.

The absence of any architectonic structure in such a privileged site for so many years was remarkable.

Other immunologically privileged sites include the eye, brain and uterus.

The placenta functions as an immunological barrier between the mother and the fetus, creating an immunologically privileged site.

This unique mix of antique and modern architecture makes the campus a truly privileged site.

One is when cells or tissue are grafted to a so-called privileged site that is sequestered from immune surveillance.

However in immune privileged sites, tissue grafts can survive for extended periods of time without rejection occurring.

Immunologically privileged sites were thought to include:

Physical structures surrounding privileged sites cause a lack of lymphatic drainage, limiting the immune system's ability to enter the site.

More recent investigations have revealed a number of different mechanisms by which immune privileged sites interact with the immune system.