The National Medal of Honor Museum is set to open Tuesday in Arlington, just west of Dallas. It highlights the lives and service of Medal of Honor recipients from the Civil War to the global war on terrorism. Over 3,500 people have received the Medal of Honor, which is awarded by Congress for risking one’s life in combat beyond the call of duty.

The sister of Medal of Honor recipient Master Sgt. John Chapman, an elite combat controller who died on a mountainside during the Battle of Takur Ghar in Afghanistan, is angered by the way the new National Medal of Honor Museum is handling her brother's story.

The building makes a dramatic impression, standing out from its larger and less distinguished stadium neighbors thanks to its defining gesture, a massive metal-clad block (200 feet square) that hovers some 40 feet above ground, intended as a metaphor for the psychological weight borne by Medal of Honor recipients.