Sadly, not much of what I did was very relevant to writing, unlike previous big adventure trips – most of the trip had to do with medieval and pre-WWI history rather than exotic locations or futuristic (or futurizable) settings.
You never know, though. The rise and fall of the Habsburgs and the shifting borders and power politics in the Kingdom of Hungary back in the day may prove useful. Somehow. If I were to write a Dune-style epic on Mars, perhaps.
The one thing that I can see as useful is the visits to several skansens – the Slovak equivalent of Brigadoon (a living village minimally changed from 1800 due to its remoteness and inaccessibility), another Slovak village combined from elements saved from a nearby dam project and representing 1880-1900, and the Roman village of Carnuntum with a number of (meticulous but still somewhat speculative) reconstructions of Roman homes, shops, and public buildings from around 350.
Why I see these as useful is that they give a perspective on what a minimum village (or settlement, in the case of Mars) and its structure/infrastructure might look like. No, Martian colonists won’t be living in colorful log houses, but these houses give functional clues what accommodations could look like when a settlement is first constructed: quarters of 2-3 small rooms, with a portion of the living area dedicated to (hand) work, shared areas for larger tasks or common functions like cooking or hygiene, meeting spaces used for social, religious, and administrative matters, etc. Carnuntum provided examples of how this could progress with time and prosperity into larger quarters encompassing more of the colonists’ daily activities: individual living, cooking, leisure, and hygiene spaces, and larger, purpose-built, and public-facing working and business spaces.
The integration of work/business into the home was different in each of the three, but was a key element in each in a way we’ve generally moved away from over the past century or more. Yes, people still do “live above the store”, so to speak, but it’s nowhere near as common, nor integrated in quite the same way as in these old examples (particularly Carnuntum).
And no, your home office where you do Zoom calls doesn’t count.
Apart from that, I can see basing a scene on something I did while hiking in the Tatras (crossing Prielom, in the direction of Polsky Hreben, in the rain – ’nuff said), and how I handled it when I realized how dangerous and stupid it was. And basing settings on some of the landscapes I either saw for the first time or saw in a new way (due to observing mountain climbers on them, or actually having crystal-clear weather for most of the trip).