Manhole Covers

For your random entertainment, here's my little collection of unique and fascinating manhole covers we saw in Japan:

In Tokyo:

In Osaka:

In Himeji:

In Fukuoka:

In Dazaifu:

In Okayama:

In Hikone:

In Hakone:

In Odawara:

Now, let's compare those with the covers at home (San Mateo):
I'm disappointed.

What do your manhole covers look like?