We do themed trips too. All you have to do is pick a subject you're interested in. Do an internet search of places and events that fit the theme. Plan your itinerary and go.
A few years ago it was going to all the places with old fashioned trains that do day trips.
Another year it was lighthouses, beaches and seafood.
One year it was Cape Breton and Nova Scotia.
Then there were the Longmire Days trips and visiting old Western towns.
Geology was a theme one year. Pipestem State Park and Fairy Stone SP in VA. The Crater of Diamonds SP, AR. Geodes in KY and IA.
Fishing is a recurring theme for me.
Herself likes to go to Blue Grass festivals around the US and the Old Fiddler's Convention in VA.
Astronomy and star parties are another recurring theme for us and we also go to Dutch Oven Gatherings.
"The only time you should fear cast iron is if your wife is fixin' to hit you with it."-Kent Rollins
First law of science: don't spit into the wind.
Magnus