Guess the Place

[MartinR]

No, not any form of hiding place.  Jackie worked out that it was part of the priory, and I can confirm that it was in use as part thereof for centuries prior to the dissolution.

Clue number 2 may help, or possibly send you on the wrong track: part of the structure is significantly older than the rest and forms part of a much larger (in surface area), older structure.

[Jackie Paper]

It also looks like it was a portion of an arch or buttress blocked up at some point. Is it a hiding place for catholic books or relics?

[MartinR]

Sorry grandarog, Jackie is much closer.

[grandarog]

Is it something simple such as just a  seat for a traveller to rest.

[MartinR]

Not a garderobe.  My understanding is that garderobes only occur in castles and manors.  Monks shouldn't have fine robes to protect.  If you're thinking of the garderobe's other function, then the monkish equivalent is the rere-dortor (lit: back of the sleeping area).  Unfortunately the picture isn't that either, but you are very close.

[Jackie Paper]

Looks like there are leaves in it, so maybe part of an exterior wall. A garderobe?
 

[MartinR]

Yes, that's the where, can you find the what?

[Jackie Paper]

Is it part of the ruins of the Priory of St Andrew next to Rochester Cathedral?

[MartinR]

No Cathedral, not the "new" parish church.

Time for a hint: A king with marital problems caused this to fall out of use.

[Lutonman]

St Nicholas?

[MartinR]

No., but there is a Cathedral connection.

[John Walker]

Just a guess.  Anything to do with a series of Norman steps, indicating a previously unknown historic entrance to the Quire?

[MartinR]

Yes.

[John Walker]

Rochester ?

[MartinR]

Fort Slough:

• Nat Grid:          TQ 83758 78498
• Nearest Post Code: ME3 9QE
• Co-ords (WGS84):   51°28'32"N,000°38'41"E or 51.47559,0.64465

And for the next one: what and where?