Zu has made it to one of the 7 wonders of the natural world, the Grand Canyon! Zu has told us that everyone is enjoying the amazing view of the Grand Canyon! The picturesque landscape is breathtaking and Zu is happy to be able to sit back and relax with their friends while they look out at the view. One thing that Zu has noticed is that the canyon walls are different colors at different layers. Zu told us that the Grand Canyon has different colors in the layers because of varying levels of minerals, like iron, that are found at different levels in the rocks. If you have any questions about the Grand Canyon, leave Zu a message in the comments section below.