The first is called Isola Sacra and it was an island where people in
At the second buri
Finally, since I know that latrines can be very interesting (we all need to use them, even in ancient times they did!) I am including a picture of one in Ostia. This is very much like the one in Hierapolis that I put a picture in earlier, except that more of it is left to look at so you can tell how it was used.