French Polynesia

This Bunker is called "Dindon" and is placed in the north of the Mururoa atoll in French Polynesia.
Nuclear explosions were done 1.5 km in front of this bunker and the channel from the lagoon to the bunker was used to place cables that transmit datas to the "computers" places inside.
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I think its an controllbunker of a abandoned nuclear wapon test facilitiy on any atoll.

looks like StarWars...

looks like a torpedo test range

rocket launch pad?

i agree with that. doesn't look a lot like normandy. and the building is obviously turned away from the ocean onto what looks like a natural harbour.
but i'm not too sure about that mediterranean thought. all that concrete...um... maybe former yugoslawia or any other ex-soviet terretory. looks like a military facility though

Dont think its part of the German Defense-Wall. The Ocean is to clean to be the North- or East-See. And as far as i know the frenche Atlantik-Coast is mostly very rocky.
Also the part in the middle looks like a rail, used to pull ships up on dock. So the docking-yard theory looks good for me ... just the place doesnt fit. I would guess it is at the Mediterranean ... perhaps Italy or south France. Japan would also be possible with their WW2-History.

this is the hide of mister x

I would say this is a part of the German Defense Wall against the Allies. So I would guess it´s somewhere in the Normandy, France?

maybe a dockyard?

a kind of ramp for boats or emergency plane in a military base

holy fuck