Witness the restoration of a historic M40 German helmet found on a WWII battlefield! This helmet, deeply rusted and worn, undergoes an expert cleaning process using oxalic acid to carefully remove ...

Top collectors on the island have amassed hundreds of thousands of artifacts — and there are still more being found.

This helmet survived a war but nearly lost the battle with time. Covered in deep rust and flaking metal, it was carefully preserved and restored to honor its past.

New Yorkers hosted the nation's World War I victory celebration in 1919. Being part of the winning team in the "War to End All Wars" was a big deal, and the city's Park Avenue was transformed for ...