Yıldız Mosque was commissioned by Sultan Abdülhamid II between 1885 and 1886 and is located in Beşiktaş, on the corner of Barbaros Boulevard and Yıldız Palace road.
This is an unprecedented example of late Ottoman Empire architecture. It is said that Sultan Abdülhamid II himself designed it. The interior decoration has a richness that is unique in mosques. Rooms on right and left sides are accessible by climbing up the staircase.
On the right hand side, there is an adorned room for diplomatic envoys, and on the left side there is an ornamental Sultan maksoorah, where the ceiling is covered with oil paintings. Its minaret has a single balcony and is adorned with many engravings.
Sixteen windows surround the eaves of its dome, which are situated on four thick iron columns. Engraved stars in turn surround these. The interior also has similar rich decorations. There are 17 windows in the mosque. On the each of the four sides, there are beautifully written verses of impressive calligraphic work. The mural inscriptions are true masterpieces and are made of mother-of-pearl inlaid ebony.