This is a tomb on university grounds which was also closed to visitors. I took just two pictures and hope in due course it will be possible to visit it.

In the Wikipedia I read "The blackened entrance to Kuyucu Murad Pasha's mausoleum. Clean-up has been halted due to the criticism of many Anatolian groups of the government-sponsored upkeep of the building due to Murad Pasha's sectarian execution of thousands of Anatolians in the early 1600s." It seems to have been cleaned since that picture was taken, but still it is closed.

The Wikipedia explains that his nickname is well-digger, adding: "His nickname derives from the mass graves he had dug to bury the condemned of the harsh methods he employed in order to suppress (and eventually put an end) to the Jelali Revolts, which were an extension and a prolongation of Kizilbash Revolts that had started about a hundred years before him and which had created disastrous turmoil in Ottoman Anatolia. Tens of thousands of Anatolians were killed during Murad Pasha's office in his several campaigns against separate large rebel groups.

Murad Pasha had a complex built in Istanbul, about 300 meters northwest of the Bayezid II Mosque on the Third Hill of Istanbul. Today, the complex has been absorbed by Istanbul University, its courtyard having been roofed in and used as a museum for the fine arts, while its library remains operational."