In summer 2009, I've visited Prague for the first time. This pic was taken at around 11pm, after super hot day full of sightseeing. I remember that cool air in the underground felt soo refreshing. It was a weird mixture of refreshment and fatigue I could sense in people waiting for the train as well. After the whole hot day in offices, finally taking the metro and going home.
My finger got in the way so here's the cropped version. I like the original one more though - because of the effect those lines on the ceiling are causing.