Linga and yoni
And if you take your shoes off and go inside, this is what you see (through the smoke haze) - a Buddhist style altar with a Cham linga in front of it, standing on a Yoni! To avoid the (for me) almost irresistible urge to become smutty, I shall quote directly from - wherever I originally cut and pasted this from - Wikipedia probably:
"The lingam is the creative power of nature and represents the god Shiva. The linga stone is usually placed in the yoni. The yoni is the source of all that exists, the female counterpart without whom the male aspect remains impotent and void. The linga united with the yoni represents the abstract form of creation."
If you are still not quite there, the word Yoni is used to refer to the vagina in texts such as the Kama Sutra. Not that I have read Kama Sutra of course. Well, not since I was a smutty schoolboy anyway!
(A difficult place to take photographs, being quite a confined space. I had to wait for it to be empty and then take a series of 4 shots)