Datenbunker - Codename "Syenit"

Basic Information
This translation is just a very quick summary of the German version: The building (called "Boarding House") is the entrance to a high-tech datacenter that was built in an 4650 square meter underground shelter which was constructed during the 2nd world war for the nearby Boehlerwerke which were, at that time, the 2nd largest weapon manufacturer in Austria. The building has a flexible hull which is being kept under pressure in order to have a round shape.
Cache
The cache is - of course - not located in the underground tunnels but next to the complex near a forest road.
The area can be reached via the nearby motorway service area Kapfenberg, reachable via S6 direction Vienna. Additionally it can be reached via Kapfenberg-Krottendorf (see parking coordinates). The latter is reachable via exit Kapfenberg, then follow the signs "Fachhochschule Kapfenberg FH JOANNEUM" (University of Applied Sciences). At a crossing follow the street next to the universities' parking lot entrance until you reach the parking coordinates.
Please note: Parts of the area are equipped with cameras and surveillance gear. They are 24/7 monitored with staff onsite. The cache is not hidden within this area, but please note that especially the entrance from the motorway service area is being monitored. Because of that it's not recommended to do this cache during the night. It is of course not necessary nor recommended to enter the fenced-off "high security area" around the Boarding-House (movement detectors, security cameras).
In order to reach the cache it is not necessary to open or manipulate anything, especially not the (emergency-)power installations near the cache location.