I love bridges. If I see a cool looking bridge, I want to cross it, especially if it goes somewhere that I’m not familiar with. Same with stairs outdoors. They feel like an adventure to me.
Birds and wildlife in my neighborhood. I’m technically in suburbia, but enough old growth patches have been maintained that we have a surprising amount of wild animals that live in or travel through the neighborhood (Massachusetts, US)
Merlin app is amazing for identifying birds at the feeder I put on my back deck. And the rest of the animals, I mentally collect like Pokemon.