One of Boston's most iconic landmarks is celebrating a milestone few restaurants anywhere can claim. WATCH HERE WATCH HEREThe restaurant opened in 1826 and since then, it has only been owned by four families. The National Historic Landmark is located right on the Freedom Trail in downtown Boston. "I came to Boston and wanted to see all historical things," said Brittany Martin, who was visiting from Texas. "Knowing that it's 200 years old just makes it even better."