The nation's first lighthouse celebrates 300 years off the Boston coast on Wednesday. It's called Boston Light and it's manned by Sally Snowman.
"I jokingly say 'womanned.' I'm the 70th keeper of Boston Light. The first 69 were all men," Snowman says.
This isn't just a job. For Snowman, this is a lifestyle. She knows the mechanics, all of the history, she even dresses in period clothing.
"I just think it as the best government housing in the United States," she says.