What is this place?

(...) but the place grew ever more chilling and uninviting. The once blue sky had vanished, and the sun struggled in vain to pierce the dense, encroaching fog. It no longer resembled spring. Alice moved slowly, her senses heightened to every sound and movement. Suddenly, a flock of crows swept past her. An unsettling feeling crept over her. "What is this place?" she whispered.