I found a manhole cover with Honolulu on it this morning while we were out for a walk. I'm going to collect shots from all the cities I visit. I found my first one a few weeks ago while in San Diego... http://365project.org/kwind/365/2014-03-26
@panthora The San Diego find was a total fluke. I goggled Honolulu and found a site that said there was one near the aquarium. It was my mission to find it! I think my husband was more excited than me because it meant we could stop walking and return to the beach. Ha ha!