A trip to Carlsbad Caverns National Park, walking down the main entrance and then through the Big Room through one of the most famous show caves in the world. While I took hundreds of photos, most of them ended up too blurry because the exposure time was usually between 2.5 and 4 seconds per picture, and it's not exactly easy to hold a camera perfectly still that long. (Note: Take along a tripod or some other stabilizing tool next time, it's not like you're in any rush so there's plenty of time to set it up and do it right.) In the photos there are plenty of yellow and green (and sometimes reddish) lights, but inside the cavern the light level is so low that you barely (or never) notice the colors at all. There are other paid, guided tours you can take as well, including some serious spelunking -- I took the King's Room tour, but the group was so large with middle school kids that I didn't have an opportunity to take photos on that leg of the journey. And despite all of my traveling, this was actually the first time I had wandered outside of Texas in over three years. Pictures taken October 27, 2011.