Maps! When I was a child, my second favorite atlas showed maps of the nations and kingdoms of the world in their historical context. As you flipped through the pages, you’d see the passage of time and the ebb and flow of borders. Now you can have the exact same experience for free online.
Also, wind! My favorite bit of weather. On those few rare occasions that I take a vacation, I love to stand on the sea shore or a bluff to feel the wind. It has so many signatures. Will it be a caress or the full body hug of a storm? My experience sailing taught me to respect the wind because if it abandons you or decides to up its strength, you’d better be prepared. Would love to move somewhere with actual wind and perhaps these maps will help me.