The Technologia Guild is going strong in the World of Warcraft and several of us have characters entering their 20s. That means we need new areas to explore and that it is time to consider instance dungeons.
For Horde, my favorite spots at 20 are Hilsbrad Foothills (Tauren Mill), Thousand Needles, and Ashevale.
I think we have enough people at the right level to give Wailing Caverns a try. It is an instance that takes about two hours to run through, maybe three the first time. We can try to set up a day and time for that, assuming there is interest.