Amasya is an ancient city with a long history that starts before the Roman times.
It was also an important city in Ottoman times. Sultan Selim I was born there, for example.
Description from ArchNet: The Bimarhane of Amasya is dated to the year 1308.
Today the Amasya Bimarhane is a museum dedicated to the history of medicine and surgery named after Sereffudin Sabuncuoglu who was a surgeon and physician active in Amasya during the Ottoman period.
The building is entered through an ornate portal on its west side. This portal consists of an arched doorway within a shallow iwan surmounted by a muqarnas hood and framed with bands of vegetal and geometric ornament carved in stone. Within the recessed entryway are two smaller muqarnas niches surmounted by inscription bands.
The Bimarhane mosque is located in Amasya.
In the entrance portal, two small muqarnas are incorporated in the wall on the left and right.
This muqarnas follows the line " back on front " and has as exception only two half intermediate units.
That is why the assembly of this muqarnas is a clear assignment for young students.
STL animation GeoGebra animation