Yesil Cami is a mosque of the Zaviye plan. Zaviye is a kind of multi-functional mosque having the inverted "T" plan with additional rooms for traveling dervishes. This style was mostly seen during the first years of the Ottoman Empire. In addition to the normal mosque chamber, there are two more chambers forming wings of the inverted "T" on both sides with rooms for dervishes. In the middle of the building there is a pool which provides drinking water and sadirvan. Above the entrance is the sultan's lodge flanked by two balconies for the imperial family members.

By looking at the incomplete son cemaat yeri and missing inscriptions around the windows outside, it is possible to understand that it is an unfinished mosque. Two minarets are not original but from the 19C.

The name of the mosque comes from green tiles which at one time covered the dome and the tops of the minarets.

The Green Tomb is the tomb of Sultan Mehmet I. It has a single octagonal chamber surmounted by a dome. Walls were covered with turquoise tiles and the entrance is through a monumental gate. Inside the building there are nine sarcophagi, the biggest belonging to Mehmet I and others to members of his family and court. Actually these are empty and symbolic as people were buried downstairs.

The mihrab of the tomb is so beautiful that it can be compared to the one in the Green Mosque.