There are so many breathtaking sights in Yosemite National Park, but the one that looms most in my memory is Yosemite Falls. At nearly 2,500 feet, Yosemite Falls is the highest waterfall in North America and the seventh highest in the world, an impressive spectacle located just above the cozy lodge in which we stayed. The falls were the first thing we saw when we opened our door in the morning, they loomed over us as we ate our meals at the lodge restaurant and had drinks in the lounge, and even in the pitch black of night, we could hear the roar of their waters crashing down over the granite mountainside. One frosty morning, we made our way up the Yosemite Falls Trail, a grueling hike of rocky switchbacks and sheer drops that I’ve heard equated to climbing the stairwells of two Empire State Buildings. In the winter, if you leave early enough, the trail is quiet and lonely, and its easy to imagine you are alone with the mountains and the valley. The hike affords beautiful views of the snow pile left at the base of the upper falls where the sunlight pulls rainbows out of the misty air, and when the rocky switchbacks break into flat trail, there are often stunning views of the valley and Half-Dome, often along cliff-sides so high up that my knees went wobbly every time I looked out on the valley spread out below.