|This is a Picture of the orchestra|
The Rock Church in Finnish is called Temppeliaukio Kirkko. It is carved out of solid granite rock and has a large copper domed roof. It was designed by Finnish architects named Timo and Tuomo Suomalainen. There are actually services there but of course they are in Finnish.
I got a nice Finland hat near the Rock Church.
This is a video of the Rock Church, you can see the orchestra, and some big organs.
The copper dome has a diameter of 22m and is lined with copper stripping that would measure 22 km (13 miles) if stretched out. It is supported by reinforced concrete pillars and light enters through 180 skylights. The church can seat 940 people and has excellent acoustics.