Given the site has been running for 2 decades its possible we have covered off every aspect of aviation, especially for pax.
After all most aircraft are identical these days and the market has forced airlines and airports into a high degree of uniformity across the globe.
Take Brisbane, I've flown thru it several times but can't remember a single feature. Its toally vanilla. Thar's good as a pax but a disapointment to any Total Aviation Person