This find I owe to the PayingWriterJobs group I subscribe to. It's an archive of articles on "where to get published." Each article profiles a specific travel-related publication.
A couple of caveats are in order: Not every publication profiled pays its writers, so you'll need to sift through the listings carefully. And you'll have to skip over the ads in each article, too.
Still, if you're looking to expand your collection of travel-pubs-to-pitch, this may well help you.