Deep in the woods in Northern Germany lie weird periscope-like pipes sticking out of the ground. The woods are a popular spot for children to play around, but little is known about why the pipes are there, or what they even do. It was rumored that there were bunkers below, but no one knew what truly lied beneath the pipes, until now (or so they thought).

Recently, a group visiting their old friend who lived around the area decided to go exploring, and finally put to rest the mystery of the strange pipes. What they found did not disappoint in the least.

See these weird looking pipes?

About a hundred meters away, the group spotted an entrance that was surrounded my overgrowth and coniferous trees. They popped open the wooden door with a crowbar and made their way in.

This iron door quickly closed behind them as they entered, which made for an unsettling first few seconds.

It seemed like there were nothing but endless hospital-like corridors.