Turkey is a natural land bridge linking the East with the West. Each year, across Western Turkey, come millions of birds on migration between Asia, Africa, and Europe. They cross high mountains and arid plains to reach Turkey's great lakes and reed-beds, vital to the migrants' survival. Other animals have adopted man-made habitats, living amongst the crumbling palaces and temples of southern Turkey that stand as reminders of the great empires that once dominated this part of the world.