Montezuma Castle National Monument, 2800 N Montezuma Castle Hwy (off of I-17, 5 miles north of Camp Verde), 34.612072°, -111.842339°, +1 928-567-3322. Daily 8AM-5PM. This park protects a set Sinagua cliff dwellings, inhabited from about 700-1400 CE. These are some of the best-preserved cliff dwellings in North America. The dwellings themselves cannot be entered, but a short interpretive trail leads to some good viewing areas. Also onsite are a small museum displaying Sinagua artifacts, and a gift shop. A separate site (included with admission ticket) protects Montezuma Well, a natural limestone sinkhole fed by two springs. $5 (adults), free (children under 16)
Fort Verde State Historic Park, 125 E Hollamon St, 34.565056°, -111.852549°, +1 928-567-3275. Th-M 9AM-5PM. This historic fort was established in the 1880s during the Apache Wars. It is now listed on the National Register of Historic Places and houses a museum with historic displays. Annually in mid-October it is the site of Fort Verde Days, which feature historic reenactments and demonstrations. $5 (adults 14+), $2 (youths 7-13), free (children under 7)