This ancient and very worn staircase can be found on the Pont Valentre in the town of Cahors, in southern France.
Amazingly, worn as it is and with no handrail, it is not roped off in any way to prevent public access. It would take a brave or foolhardy soul to climb it, though, however impressive the views over the River Lot might be from the top.
After the helter-skelter mini-train journey that featured last week, a more leisurely approach, with a cruise on the River Lot that runs through the town and beneath the striking three-towered, medieval Pont Valentré, which is worth seeing in all its glory:
Although to maintain the door theme, here’s a close-up of the middle tower:
Here’s another door halfway up a wall, taken from the mini-train: