Natural Landmarks
233 attractions
Categories are the unit the ranking is calibrated on: each one carries a significance baseline and a tourism-relevance weighting, both published.
Category is not just a browsing aid here. It carries the two judgements the ranking depends on: how significant a kind of place is by default, and how far it counts as a tourism destination at all. Both are declared as data and rendered on the methodology page, so a reader can check the weighting rather than take the ordering on trust.