I have seen a few who complain about the lack of Islamic artifacts in the country considering that this is the very place where Islam was born.
Many turn to the Topkapi Palace in Istanbul and praise it for its wide display of Islamic artifacts, some of which date back to the time of the Prophet Muhammad (P.B.U.H.)
Based on my personal experience I believe that there are numerous ancient Islamic artifacts in the country today, most of which are being displayed in the museums. In fact most major museums in the country have a separate hall that is dedicated to Islamic artifacts.
We recently visited the Al Haramain Museum in Makkah a.k.a. Makkah Museum and were left mind-boggled by the wide range of artifacts that it housed. This entire museum was dedicated to Islamic artifacts; artifacts that had some relation to Masjid Al Haram to be more specific.
The museum is divided in seven portions. One of them is the Zamzam hall, which is dedicated to the miraculous Zamzam water that continues to gush forth from the middle of the desert, quenching the thirst of hundreds of thousands of pilgrims since ancient times.
Entrance Fee: Free
Timings: 9AM to 12PM, 5PM till 9PM.