Once-despised "entai" concrete bunkers built here during World War II to protect military aircraft should be preserved as "a ...

When American guns made German bunkers useless in World War II, a revolutionary weapon changed fortification warfare forever: ...

Built in the early 1940s on the orders of Adolf Hitler, Flakturm IV was designed to protect Hamburg from Allied aerial attacks. Almost indestructible, the formidable fortress was a symbol of Nazi ...

Downriver from New Orleans, behind heavy doors in grass-covered bunkers that stored artillery during World War II, are millions of dead fish. They're preserved and cataloged in rows of glass jars, ...