The Royall House & Slave Quarters is offering free tours from 10 a.m. to 2 p.m. today in celebration of Juneteenth. In the 18th century, the Royall House & Slave Quarters was home to the largest slaveholding family in Massachusetts and the enslaved Africans who made their lavish way of life possible. Today, the Royall House & Slave Quarters is a museum whose architecture, household items, archaeological artifacts, and programs bear witness to intertwined stories of wealth and bondage, set against the backdrop of America’s quest for independence. The Slave Quarters is the only remaining such structure in the northern United States, and the Royall House is among the finest colonial-era buildings in New England.