This is new to me, but is actually a couple of years old. The folk at OSHO (Pune, India) have a large pyramid in which folk can meditate...

This building was constructed specifically for meditation purposes. It can hold over 5000 people and it was designed by an Indian mystic and spiritual teacher, known as Osho (osho.com) just before he died. He wanted this building constructed especially to be used for meditation purposes. It is very interesting that many spiritual teachers and mystics from India have always acknowledged the power of the pyramid shape for meditation. This the largest complex in the world today constructed specifically for meditation.

Source and more photos: GizaPyramid.com