| The Court of the Libraries, the oldest part of the ensemble, is a colonnaded portico with a nymphaeum on its northern side. |
| The water emerges through a singular nymphaeum in the west niche opposite the entrance and runs into the fishpond via an incline cut with zigzag channels. |
| The immediate vista is of a nymphaeum, with the god Apollo as its centrepiece. |
| A small storage jar from the nymphaeum at Umm Qays with a geometric pattern painted before firing. |
| The two 'libraries' are reached by passages on either side of the nymphaeum. |
| The nymphaeum was decagonal on plan, so that small pendentives were required to carry the brick dome. |
