Get ready to explore the Grand Canyon and much, much more.
Both feature plenty of opportunities to snap photos with giant saguaro cacti just stay on the marked paths.
Signal Hill on the west side is a popular spot for marveling atpetroglyphs(ancient rock carvings).

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Montezuma Wellis a gorgeous sinkhole, also managed by the NPS and a sub-unit ofMontezuma Castle National Monument.
Bonus: The entrance fee for one park covers the other, too.
Experts believe the structure may have been used as a gathering place or way station.

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Today it’s inhabited by great horned owls, bats, and other animals.
This national monument is free to visit.

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