Jamie Melissa Wilms only joined the Denver Firefighters Museum, housed in the original, 136-year-old Station One building in downtown Denver, in April. But the new executive director and curator of Denver’s firefighting history already knows this year’s Museum Day will be a hit. “It’s been pretty popular at every museum I’ve worked at, including the Molly Brown House,” Wilms said of the Smithsonian Magazine-sponsored program, which highlights and drives traffic to museums nationwide each year.