The kings of Phrygia built large tombs near Gordium called tumuli, which consist of artificial mounds constructed over burial chambers.
There are about one hundred of them, covering both cremations and inhumations.
One is opened to the public, the Midas’ tumuli. In front you can find the museum of Gordium.
It is a great day trip to do in the weekend as it is only an hour away from Ankara. Bring your Müzekart!