Mt. Ararat has been the defining symbol of the Armenian nation since antiquity. These days, of course, it's in Turkish territory, tantalizingly near the border of Armenia. Linked below is a great article detailing the continuing saga of the Ararat Anomaly. The Turkish government hasn't allowed anyone to make an archaelogical expedition, but the Anomaly is reported by the Kurdish mountain-folk to be most certainly man-made.
SPACE.com -- EXCLUSIVE: Satellite Sleuth Closes in on Noah’s Ark Mystery