One reason I love traveling to a big city is that it is such a different experience from my own life. There are the physical differences: streets packed with vehicles and people, the hum of traffic and voices, even the light is different, bouncing off glass and steel and concrete. And there is so much to do: parks and gardens, museums, galleries, live music and restaurants. And it’s all right there. In easy reach of a subway or a bus or even just the sidewalk.