This museum marks the final resting place of Amir Timur. He was the conquror who founded the Timurid Empire in and around the modern day of Afghanistan, Iran and Central Asia (Source: Wikipedia, 2021). From my personal knowledge, he was buried here along with his two sons and two grandsons. His spiritual advisor, Mir Said Baraka and teachers were said to be buried in here as well.
As you can see from the photos, the details of this building is beautiful. These photos do not do the place justice at all.