This looks like land before time. If you’re looking for something straight out of a fairytale, check out the "Gate of Heaven" on Tianmen Mountain, China. This massive natural arch, known as Tianmen Cave, sits around 5,000 feet above sea level, making it the highest of its kind in the world. The way sunlight streams through the opening gives the place a magical vibe, and it's easy to see why it's a must-visit for anyone exploring the region!