Mausoleum of Mahmud II built
1840 CE.
Shown on the map at 41.008°, 28.973°.
The Tomb of Mahmud II is a tomb built by the Ottoman Sultan Abdulmecid for his father Mahmud II in Istanbul, where other sultans and members of the Ottoman Dynasty were later buried. Completed in 1840, the tomb is located on Divanyolu Street in the Çemberlitaş neighborhood of the Fatih district of Istanbul.
Text from the Wikipedia article Tomb of Mahmud II, licensed CC BY-SA 4.0.