This passage goes under the connection between the old and the new stage of The Royal Danish Theater (Det Kongelige Teater) in Copenhagen. In 1931, the new stage opened, but it had several impractical constructions, like the audio studio wasn't sound isolated. It remained problematic until it was closed in 2008. Photo by: Jacob Surland, www.caughtinpixels.com Licensed creative commons non-commercial v4.0. No derivative Work. Protected by Pixsy.com.