It's not the original. It's a replica of the original that is in Japan.

It's still a cool place though, I've been there a few times. It's not far from the horticultural gardens, which is worth seeing as well, and the Pali lookout is on the way from Honolulu. Although, they now have a big gate so you can no longer walk down the old Pali highway. Probably for the best since there were holes in the road that you could fall down through to the highway below. But, no one is stopping you from climbing that gate... Just sayin'