N-S 79 Hrobka casemate, Military casemate near Dobrošov, Czech Republic

The N-S 79 Hrobka is an infantry casemate built from reinforced concrete with three firing positions and a central observation dome set into the ceiling. Located near Dobrošov, it represents a standard design used for border defense fortifications.

The casemate was built between 22 November and 1 December 1937 by Ing. Rudolf Fryč's Bratislava firm, using 1,820 m³ of concrete. After the Munich Agreement, German forces tore out the main gun embrasure and all domes and bells. Removing the central observation bell toward the interior destroyed much of the rear wall. In 2009 the army transferred the structure to the Náchod Military History Club.

The name Hrobka ("Tomb") probably comes from a soldier's skeleton found during excavation, said to date from the Prussian-Austrian war. Since 2009 the site has belonged to the Klub vojenské historie Náchod, which runs the museum at the nearby N-S 82 Březinka casemate and deliberately leaves Hrobka unrepaired.

The casemate is owned by the Klub vojenské historie Náchod, which deliberately keeps it unrepaired as a demonstration of wartime destruction. Access to the interior is possible by prior arrangement. The site can be reached on foot from Dobrošov via the Pevnost Dobrošov educational trail, or from Lázně in Náchod-Běloves along the green hiking trail and then the educational trail.

The structure retains its original unrenovated condition, making wartime damage clearly visible to anyone who visits. The destroyed rear wall and missing observation dome offer insight into how combat actually affected these border fortifications.