Reddit user demc7 recently moved into a new apartment in a very old building. It’s in an old English monastery conversion, dates back to the 19th century I reckon, and now has about 30 apartments. It have a tiny room on the ground floor. He got a great deal on the rent, and didn’t realize how much value he got until he moved in and found an area worthy of any movie-grade exploration.
In his own words, he describes his discovery:
The kitchen/living room has high ceilings: it’s a very old building.

Got all the essentials set up.

The kitchen/living room has high ceilings: it’s a very old building.

It really is a mezzanine, it’s more of a bunk bed than a bedroom. Cozy.

Nice functional shower room.

Hang on.. What’s this?

Looks like a hatch. This wasn’t in the lease.

Opening it…

Oh, a bit of underfloor storage for some tools and old paint cans. Pretty unexciting. Of course there couldn’t be a secret dungeon complex under my bog-standard studio I rented for small money, that only happens in poorly written movies.

Hang on a second…

This can’t be true, that’s definitely a staircase.

We have a dungeon. We have a dungeon. At this point I couldn’t believe my luck, and was completely freaked out since it was so unexpected. I suspected the dungeon stretched beneath the entire building, so I sealed the hatch (with the bathroom door wedged over it) and awaited backup.

Got a friend, and proceeded. There is a proper 19th century layout of corridors and hatches beneath.

To the right of the corridor, underneath the neighbor’s room.

Friend examining the end of the corridor. It stretches further, she said.

But wait, what’s up there? Only noticed this when reviewing the photos, could be a hidden space upstairs between apartments, or else an illusion caused be a collapsing ceiling. To be investigated.

This is on the left of the corridor. Beautiful vaulted ceiling. Didn’t get a good look though the hatch yet.

Random graffiti. People have been here this decade.

The basement space is beautiful. Four walls, albeit a bit damp, and a somewhat solid floor. Great headroom down here.

Curious shape in the corner. Bed, or crypt, it’ll make a good seat for a potential home cinema, or else for a dungeon party.

Furnishings. Sacrificial altar?

There’s a hole in the middle of the room, with very soft dirt. Possibly recently disturbed.

The staircase back up to the apartment. The builders have been down here when the place was being renovated a few years ago, but it seems completely uninhabited since. No mention in the lease. This appears to be the only staircase to the dungeon. I’m debating my next move. More exploration needs to be done, but it’s very scary living above it alone.
Watch the video for an eerie guided tour:
It’s a little too creepy for me to live in, but it was an amazing discovery. This hidden dungeon is something straight out of a horror movie. So many things could have been happening down there. Or maybe I’m just creating some horror movie in me head. Being human, you tend to think about the weird stuff that could have been happening not too long ago.