Lone man descovers drozen lake

A lone explorer riding a horse through a vast, misty mountain wilderness at sunrise. He follows an ancient, overgrown trail deep into the forest and suddenly discovers enormous stone ruins hidden between the mountains. As he approaches, the fog slowly clears, revealing a breathtaking ancient city with towering stone temples, massive gates, broken statues, vines covering the walls, and mysterious golden light shining through the ruins. His horse stops in amazement as he looks at the forgotten civilization for the first time.