I'm in my mid-twenties and looking to travel (to Europe or Asia) by myself. Are there any tour groups out there that are geared towards "younger" adults? I once took a Contiki trip that was geared towards 18-35 year olds. It worked well, but I'm looking for other itinerary options. I just feel that many tour groups are frequented by older populations or couples. Any thoughts would be much appreciated! I'm looking to travel anywhere, and usually it helps to go with a group to make it more affordable. Thanks!