Chunk of Plymouth Rock
Brooklyn, New York
Brooklyn's Plymouth Church of the Pilgrims has a storied past, meriting its own mini-museum of artifacts in its adjacent office-and-schoolroom building. The most famous item in the collection is football-size chunk of Plymouth Rock -- perhaps the largest piece outside of Plymouth -- displayed in a wall niche above a plaque reading, "The Door Stone of American Liberty." The church was founded by transplanted New Englanders, one of whom reportedly was given (or simply grabbed) the rock in 1840. It was kept out of the public eye for a hundred years, probably until its trail went cold, then placed in the niche. It's been there ever since.