Alum Rock Park, San Jose, CA
Sitting on a natural mineral spring, this park actually used to be a spa where people would come from all over the world. Five experts were supposedly hired to test the water, and all said that it had healing properties. There are a lot of old stone remains, but very few signs telling what everything was. I did read that there were many underground tunnels throughout the property, and it looks like that’s what this was….
Canon 5D Mark II
Texture from SkeletalMess on flickr