Tomb of Ertuğrul Gazi, Mausoleum in Söğüt, Turkey

The mausoleum in Söğüt, Turkey, is a six-sided structure with stone and brick walls topped by a lead-covered dome. Rectangular windows are set into the walls on several sides.

Built at the end of the 13th century, the tomb's exact date is unknown. Osman Gazi first had an open grave made here, later turned into a tomb by Mehmed I. Sultan Mustafa III had it rebuilt in 1757, and Abdülhamid II restored it in 1886, adding a fountain beside it.

The place carries the name of a 13th-century tribal leader whose descendant founded the Ottoman Empire. Alongside him rest several other Ottoman warriors from the early days of the dynasty.

The tomb stands in Söğüt, reached through a rectangular entrance flanked by two windows. Inside, the sarcophagus area is lit by rectangular windows on the western and southeastern walls. A fountain added in 1886 stands beside the building. The interior can be viewed online in 360° imaging, from the entrance to the burial section.

The tomb was not merely damaged in 1921: official documents record that the Greek army dynamited it during the destruction around Söğüt. Mustafa Kemal Paşa cited the blowing up of Ertuğrul Gazi's tomb in his 12 April 1921 declaration to the world.