A military structure located near the village of Černíkovice in the Hradec Králové Region of Czechia. The alphanumeric designation 'X/20/A-160 Z' suggests a possible Soviet-era military inventory or mapping code, common in former Warsaw Pact nations. The region was part of Czechoslovakia during the Cold War, which hosted extensive Soviet-aligned military infrastructure, including ammunition depots, command posts, and defensive fortifications.
No specific historical details, construction date, function, or current condition for this particular site could be confirmed from the provided search results. The coordinates place it in a rural, forested area typical for concealed military installations. Further local historical or archival research would be required to verify its precise purpose and status.