Flight Log: http://www.flighthistorian.com/airports/FRA
The vast majority of my travel is within the United States, so Frankfurt remains the sole international airport in my flight log to date. I’ve certainly been to others – I grew up with Air Force parents and have lived in both Germany and the United Kingdom, but both were when I was much younger, and I don’t particularly remember the airports.
I think the biggest thing that surprised me was that, while it was a big airport, it wasn’t as big as I expected. It’s hard to remember, when I routinely fly through ORD and DFW, how big those airports truly are; they’ve become my normal “major hub” baseline, and I’m comparing everything to them.