Gazi Husrev Beys Muwaqqithana
Muwaqqithana is building for observation the stars, and accurate measurement of the Lunar time. Gazi Husrev-Bey's Mosque has one muwaqqithana in its complex.

In 1859, along with the abdesthana, a small building was built and was given the name muwaqqithana (a place for the one who sets the clock). Inside this room the instruments used to measure the height of the Sun are kept.