These cliffs rise dramatically from the desert, stretching toward the sky like a great natural wall. When you stand atop them and look toward the horizon, you have a prime view of the sky as it seems to melt into the barren earth.

The Edge of the World (Jebel Fihrayn) is an unexpected and dramatic geological wonder in the rocky desert northwest of Riyadh, Saudi Arabia. The site earned its nickname because from atop the escarpment, you have an uninterrupted view of the horizon.

It’s part of the much longer Tuwaiq Escarpment, and drops down 1,000 feet into an ancient ocean bed. While standing on the cliffs, you’ll spot dried rivers weaving across the land, and see camels moving far below. These camels and their herders are following a well-trodden path, as an ancient caravan route once passed within its shadow.

There are several hiking trails on and around the cliffs. If you pass through a spot dubbed “the window,” you can even get down to the lower plateau. Keep an eye out for fossils as you’re exploring, and be careful, as the gravel is loose and the rocks are sharp.