Where is Bitcoin? (opens in new tab)

Happy Birthday Bitcoin! At the risk of awakening long-dormant beasts, it looks like Bitcoin has failed for day-to-day transactions. So I've a simple question to ask - can you meaningfully spend any cryptocurrency in your city centre? A few months ago, my wife and I went on a 30 day Interrail holiday across Europe. 10 countries, over a dozen cities, making over a hundred payments. I looked in…