If I had to defend the idea that fictional inspiration is the main driver, I would say that it opens horizons and that guides materialize the vision, but this hierarchy is often reversed in practice.
A tourist guide is not just a logistical complement to a novel inspiration; it is often the starting point for millions of Belgian travelers.
Many consult Routard or Lonely Planet guides to choose a destination based on climate, culture, or budget, before any fiction.
For example, a guide can highlight hikes in the Ardennes, sparking the desire to explore them long before a film takes place there.
Fictional inspiration is a possible condition, but not a decisive or universal factor in travel planning.