Not Your C.
Google
Honestly, the monuments on this central area are worth ★★ if they weren't on the Wikipedia page for Phnom Penh you'd walk on by. They are interesting enough, but aside from the actual Independence Monument itself, the others are of no massive cultural, historical, or aesthetic importance - the 'pineapple' being designed by the Cambodian genius architect Vann Molyvann (not his masterpiece). I'm giving an extra ★for cleanliness, as the place, as with much of the City, is spotless, and one more ★ for security. At night there are more security gurards than visitors and they are friendly. Thank you Phnom Penh for valuing visitors to your great city🙏
One thing I would add, however, is that it's a NIGHTMARE trying to play frogger through the traffic. I strongly suggest the civic authorities re evaluate accessibility.