In January, Mrs. MN and I are visiting Prague and Vienna. I have been to Europe several times but not to these cities. Does anyone have any advice for first-time visitors interested in better understanding the culture and getting to a few out-of-the-way places? We are spending four days in each city, and we hope to plan a day trip to somewhere outside each city. We hope to see sites related to culture and science as well as catch a concert or two and enjoy local food and beverages (beer). All suggestions are welcome, and thank you in advance!