What is the most beautiful place you've ever been to, and what made it so special to you?

Certain mountain in Central Bohemian Uplands. After short-but-intensive hike upwards, you get to wide park-like (the trees naturarilly grow such that they left good pasatges between themselves) mountain-top, with view-points from where you can see half of Bohemia. Then I slept here, and the night was bright, and even though I usually don't like the lights of cities, that time it looked like the stars were on the sky and also on the land.