I come back to this generator a few times a year nowadays (though I watch that town generator a lot more) and today followed the link from Azgaar's world generator-- pretty awesome to see them linked up.
I had one suggestion, though: it'd be nice to be able to rotate the landmark 'bubble' around the tip of the 'pin', so that it would be possible to avoid overlapping important parts of a map. Either just a slider/text input when editing the name of the landmark, or being able to click on the bubble and drag it around the pin (though that would be problematic when trying to move the landmark unless there was a special 'rotate' handle on it).