A plaque memorializes the Boston location of one of the largest nightclub fires in history.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

A beautiful Victorian-era cemetery, complete with a miniature village.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The bears may be gone, but their old cages can still be found.

This small shop walked so America could run on Dunkin'.

This building is more than 250 years old and was built in one of the first towns settled in Massachusetts.