A prehistoric cave, extensively decorated, discovered during construction of the ring road.
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Odtu Bilim Ve Teknoloji Müzesi
Large museum of science and technology. Has a particularly good collection of military aircraft, and a large steam locomotive. However, not accessible to the general public usually - you have to have an invitation to the METU campus or TEKNOKENT to pass security.
Türk Hava Kuvvetleri Müzesi
A collection of two dozen military aircraft.
Atatürk Orman Çiftliği
Extensive model farm established by Atatürk, to prove that the dusty steppes around Ankara could be converted into good farmland. (His successors preferred to cover everything with concrete.) The barn has been turned into a museum of farming methods.
This had been in the planning since 1944, but attempts at a modern style were thwarted by the conservatives. So what was built from 1967 to 1987 is a neoclassical Ottoman structure.