It is a circular chapel, with an age estimated at 1000 years.

A tall circular chapel stands in the middle of the site, around which are sited the six rectangular cellblocks in a radial fashion.

The walls of an adjoining small circular chapel were covered with mirrors, and its entrance decorated with a Rosicrucian cross.

On the piano nobile, there is a circular chapel with Corinthian order columns painted to imitate rose marble and a coffered dome of stone.

Facing west at the memorial, one sees in the foreground the reflecting pool, the mall with burial areas to either side and the circular chapel beyond.

The upper stage, or tholos, is a circular chapel with Corinthian columns.

Object Gallery occupies the original circular chapel designed and built by Ken Woolley in 1958.

The circular chapel in the inner ward is very unusual, perhaps unique in Britain.

There were also large sheds for the storage of goods in quarantine, a circular chapel, and a menagerie for animals.

The large sandstone walls still bear convict markings, and the complex features six wings surrounding a circular chapel.