The coordinates 47.63831, 26.2389 point to a location in Suceava, Romania. The provided existing description references a modern medical facility (Fresenius Nephrocare dialysis center) on 1 Decembrie 1918 Street, which does not correspond to a known historical military bunker. Suceava has a documented military history, including use as a WWII airfield (Flughafen Suceava) by the Romanian and later German Luftwaffe, and Cold War-era air defense installations in the region.
However, no specific historical military bunker, its function, or construction details are confirmed for this precise coordinate in the available search results. The site's current identification as a bunker is therefore unverified; it may be a modern structure or a different type of installation.