I brought two pairs of shoes with me for my visit to Vienna (and other cities) because the oringinal weather forecasts showed rain, and I felt that I could not afford to just bring one pair of shoes if they got wet.
But since it was dry, I wore only one pair of shoes, and left the other pair bagged in suitcase. The pair I wore worked like a miracle, for my plantar fasciitis, and heel pain - THERE WAS TOTAL COMFORT!
I purchased CHAMPION Bungee Ramp shoes from Payless for $30, and added Dr. Scholls's 16 hour comfort insoles (they are green). This combo worked like a charm. I walked in comfort AND attended a very fancy formal gourmet evening at the Vienna Art History museum. The shoes looked FINE for this formal event because I wore black crepe pants and a crimson satin blouse, and no one could really see my shoes.