This is the (empty) bar at the Swiss Club in Cairo. Looks very Swiss, no? And so very NOT Cairo. If you're ever in Egypt any time soon and want to dance some tango, "The Swiss Club Practica" is held every Tuesday night at 19h00 in the "bowling room" by the back garden. When I was there, you could dance a bit, the room is very small, and then go outside to chat or watch, sitting on wicker chairs and surrounded by tiny palm trees. Like a little oasis.
There aren't many dancers, but some are wonderfully good, and all of them are very nice people. Egyptians (and there aren't just Egyptians dancing, some expats and foreign people like me who stop by) are excellent conversationalists, so the energy is pretty positive.