Since you are in Phoenix it is REALLY is to see the Phoenix Vortac antenna. As you go east from Sky Harbor along the 202 freeway you look off to your left you will see a large white round antena sitting on the opposite side of the riverbed. That is the PXR VORTAC antenna. It just looks like a giant white omnidirectional antenna. If you want to get closer to it, just head down Rio Salado Pkwy and you can get close to it.
There are not any NDBs up at Black Canyon City however. In the valley there are NDB's at Scottsdale, Falcon, Chandler, and Glendale. So if you wander around at either of those airports you might be able to find it. Though I don't know what it would look like.
Stop drop and roll will not save you in hell. --- seen on a church marque in rural Virginia