Boston's famed Old North Church is the latest site of an archaeological survey designed to get a better sense of daily life going back to the city's colonial past.
The City of Boston's Archaeology Program is leading the two-week survey, which continues through Friday.
The dig is exploring the buildings' backyards and privies, or outhouses, which can be critical to discovering historical artifacts.
The church's steeple played a pivotal role in the American Revolution when lanterns were hung to signal the approach of the British, giving rise to the phrase: "One if by land, and two if by sea."
More than 40,000 artifacts dating back 300 years were recovered during a 2013 survey near the church.
Live updates will be posted on the Boston Archaeology Program's social media accounts.