This is a great museum to visit, if you are in Istanbul.   It is near the Topkapi Palace, on the left if you are walking towards it.

We went into the museum, thinking it was the Museum of Archaeology, because there are three museums on the same site.

This is what the website says about it:

The Ancient Orient Museum consists of the sections of Pre-Islamic Arabian Art, Egypt Collection, Mesopotamia Collection, Anatolia Collection, Urartu Collection and Cuneiform Documents, arranged according to regions; the cultures of the Arabian Peninsula, Egypt, Mesopotamia and Anatolia have been presented in historical order.

There is a small cafe outdoors, under trees, a great place for a coffee after visiting the collection. It has an attendant friendly ginger cat.

The Archaeology Museum was shrouded in wraps, and most of it is closed, which is a pity.  It has a vast collection, part of it described here:

After its opening on June 13, 1891, the Archaeological Museum expanded its collection rapidly. Currently, on the ground floor of the Archaeological Museum, sculptures from the Ancient Age from the Archaic Era to the Roman Era may be seen on the right side, and world wide famous unique artifacts such as the Alexander Sarcophagus, the Sarcophagus of Crying Women and the Sarcophagus of Tabnit that came from the Royal Necropolis in Sidon on the left side. On the upper floor of the two-storey building, there are the Treasury section, the Non-Islamic and Islamic Coin Cabinets and the Library.

Here are some photos which I took