- Château de Chenonceau
16th century door leading into Salle des gardes, saying: "S'il vient à point, me souviendra". Basically - if I ever finish building this castle, I will be remembered. But I forgot who wrote it :-) - Derrière une porte
I once had to write a story "Derrière une porte" being given an image similar to this one. I probably could write another one for this door as well. - Cairn of Barnenez
The tumulus contains 11 chambers entered by separate passages. - Manoir de Kervaudu
I get the door. I get the open upper part for ventilation or light. I even get the cat door. But why do you need two cat doors?