I'm in Texas for a few weeks then I'll be off to Colorado for a while. While it's great to have access to a car again, every time I start driving around the city, I can't help thinking back to the cool, cave-like, painstakingly beautiful metro system in Stockholm that I was using just over a week ago. This is just the blue line at T-Centralen (the metro stop neighboring the city's main station) – there are stops with this attention to detail all over the city.