The Edge of the World is a rock-framed “window” with a wonderful view of the valley below. It is about 180 km North-East of Riyadh. Edge of the World is located up straight from the Acacia Valley. This place is also called the rock framed window because from the cliffs you can see a dramatic view of the plains below. TOUR INFO. (Full day tour). – Transportation with 4×4 cars – live the adventure. – Hiking. – Refreshments & Snacks – Main meal.