First of all, I have to say I love, love, love your site. Awesome! Seriously. Our plan is in OMY to buy a small campervan and travel around with our pup abroad. This is the type of site that helps me dream about all of the fun places we can visit, but also have a better idea of what our RE budget should be.
A couple of suggestions for things for inclusion:
1. Someone mentioned "stickyness" before. What I would love to do is be able to right click and open some of these in new tabs. That way I can look at them side by side with the other places, save some of the places, share the link with my husband, etc. That would also help with stickiness I suspect.
2. Along the same lines as the first one, how about a compare button? Be able to pick one or two places and look at them side by side.
3. Since pets came into the subject, what about pets import rules? Even if you just linked to the page to one of the pet importers that listed the requirements, that would be an easy start.
A couple of other suggestions - these are constructive, so hopefully you don't take offense:
1. Suggest on the home page, in the header image, maybe an image that is more appealing - having it scroll through some amazing travel destination and have the monthly price shown in the corner or something like that. As someone who doesn't have children, while I think the image is really cute, it doesn't capture my travelers attention, it makes me think this is a site about kids adventures.
2. Along the same lines as above, under all of the search stuff, maybe have a few pre-populated suggestions to capture people's attention? I love the uncluttered look right now, but having some more visual teasers might grab people's attention.
Hope you don't mind the suggestions, I love the site, and think you have done an amazing job. I definitely will use to help plan some fun adventures in the future! Thanks again, and good luck with it!