This calcium formation is the largest of its kind. With the hot pools, white cliffs and the amazing surroundings, this is definitely one of the wonders of the world.
It's a spectacular rock-hewn monastery perched dramatically on the narrow ledge of a steep cliff in the forests south of Trabzon.
On the eastern side of Istanbul’s old city, Topkapi Palace was the focal point of the Ottoman Empire for 400 years.
Hagia Sophia in Istanbul’s old city s an architectural phenomenon and one of the largest enclosed spaces in the world.
