Just a short walk from Budapest International Airport, visiting Repluogep Airpark is a nice option to pass the time while waiting for your next flight.
Take a First Class seat on a TU-134
A few of the opportunities that can all be a apart of your experience when you visit Repulogep Airpark.
Even though I am basis as an airplane junkie, if you have enough sit time at Budapest Airport I think Repulogep is worth checking out.
TU-134 Flight Deck With Gunner Seat