There’s a splendid building in the heart of Boston that’s haunted by a tragic loss. The elegant Isabella Stewart Gardner Museum is home to a collection of more than 7,500 pieces of precious art. If you follow art news or events around Boston, then you may recall the burglary that took place there in 1990, which has never been solved. The 13 stolen works of art, 11 of which are paintings, have a value of $500 million and include works by Rembrandt van Rijn and Johannes Vermeer. Empty frames, where stolen paintings once hung, appear like ghosts on the walls.