Found on the Web a little Cold War Gothic photostory. It's mostly images, but also text. Here's how it starts:
A man was visiting his friend in northern Germany (former German Democratic Republic area). They found these strange periscope-like pipes coming out from the woods and decided to find out just where they led. This is what they saw while in the woods:
Here's the photo:
Industrial pieces projecting from nature. How mysterious! How suggestive of what lies beneath.
The text continues:
They soon realized the pipes led to an old bunker. When they found the entrance, the area was blocked by trees and other shrubs. They used a crowbar to get their way inside.
Here's that entrance, the gateway to a 20th-century underworld:
And within? Tunnel after tunnel, a Ballardian subcellar network.
There's more. Step inside.
(thanks to Nate Hammet!)