We're once more staring at a building that doesn't look quite real. But we're here to assure you that it is; this is an actual monastery built into the side of a mountain! It's called Eremo di San Colombano and is located in Trambileno, Italy. Monks have resided here for hundreds of years; as you've probably guessed, it is incredibly secluded. To access it, you must cross the river Leno's gorge.
You then have to climb 102 steps that have been cut into the cliff. This building was built in 1319 and its magic doesn't lessen with the passage of time.