Our cage has many interesting features. Our cage is California, where we live. My cage which lives in another cage which is in another cage which is in our cage. California has many features such as the mountains which are caused by the plate tectonics in California. Down below you can see a picture of one of California's mountains called Mt. Shasta. As you may already know now that California is part of a transform boundary, making it have something called faults. California has many faults, 18 to be exact, the biggest one of them call is called the San Andreas Fault. To learn more about the plate tectonics and features in California, check out these cool links below.
About the Faults in California:
http://ceres.ca.gov/ceres.ca.gov/ceres/calweb/coastal/mountains.html