Ancient Rudkhan Castle, one of the largest castles in Iran which occupies an area of about 5 hectares and sits at the two peaks of a mountain:

http://www.allempires.com/Uploads/RudKh.jpg

http://farm1.static.flickr.com/66/166180226_7880a7f8fc_b.jpg

http://www.allempires.com/Uploads/Rudkhan7.jpg

http://farm3.static.flickr.com/2660/3798324132_94ee4fc97e_o.jpg

http://farm4.static.flickr.com/3631/3605932413_5166953427_b.jpg

Some more pics:

http://www.allempires.com/Uploads/Rudkh2.jpg

http://www.allempires.com/Uploads/Rudkh3.JPG

http://www.allempires.com/Uploads/roodkhaan_castle01.jpg

http://www.allempires.com/Uploads/roodkhaan_castle_00.jpg

http://farm4.static.flickr.com/3216/2955384504_f4fe76d268_b.jpg

http://farm4.static.flickr.com/3012/2565993534_a890361573_o.jpg

http://www.allempires.com/Uploads/Rudkhan5.jpg

http://www.allempires.com/Uploads/Rudkhan10.jpg

http://www.allempires.com/Uploads/Rudkhan6.jpg

Rudkhan castle stairway:

http://commondatastorage.googleapis.com/static.panoramio.com/photos/original/23890665.jpg

http://commondatastorage.googleapis.com/static.panoramio.com/photos/original/23889841.jpg

http://commondatastorage.googleapis.com/static.panoramio.com/photos/original/23889816.jpg

Oh.. Such a huge castle. Very large.Thanx for posting all pictures.Thank you.