"Bookmark your favorite places, and explore places your friends like to find new favorites."
What? I think this line needs to be rewritten.
Your map is a little confusing for me. Clicking through to Texas shows me 32 places in Austin and 10 in San Antonio. I assumed this meant that there were no places listed in Dallas, but if you continue to click down, 2 show up. I probably wouldn't have gone that far if I wasn't exploring.
On the plus side, the design is great. There was just an article at the top of HN that mentioned being "Pixel Perfect" in web design. Your site is a good example of that.