The Petros Canyon, also known as the Luxembourg Grand Canyon, is one of the world's famous scenic spots. It is about 100 meters wide and 60 meters deep, naturally dividing Luxembourg City into two urban areas, the new and old areas in the north and south.
Constitution Square is the best place to view the Grand Canyon and the scenery on both sides. Opposite the Grand Canyon, there is a palace-like building located in the green, which looks particularly magnificent. It is the Luxembourg National Savings Bank. At its north end is a tall pointed round bell tower, and on both sides are medieval buildings with only roofs visible.