On or way home from the Wedding, Liz and I passed billboards for various caverns for about 100 miles while driving up Virginia. We decided that we should stop at one because it might be interesting. Well it turned out to be very cool and it was a self guided tour so we rushed through it a little bit and it still took us 45 minutes to complete. I couldn’t believe that this underground cave was just sitting there waiting to be discovered. One of the cool facts we learned was that this was the first site of air conditioning. There was a house built above the caverns and a hole drilled into them from the house. Then a fan was put at the top that would regulate air flow. The cool clean air from the caverns would cool the house. Best part is its still used today in the same house.

The photo is a single exposure HDR tone mapped in Photomatix and touched up in Photoshop.