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Description:

I think it's inside a catacomb

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What is the sum of two and six?

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2 comments

dagger66 2 months ago
1

The fortress cannon opening are almost an exact match to the abandoned Fort Carroll in Baltimore Maryland, but the concrete goes to the top of the arch at Fort Carroll and the mystery image has a little brickwork above the cannon opening.
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unimaru_ 2 months ago
0

I suppose it is Fort Point San Francisco or Fort Jefferson or Fort Massachusetts or ...