A small town in Indiana is home to one of the most macabre monument: a concrete block embedded with dozens of human teeth. Apparently, the block was designed and constructed by a dentist who died in 1978. Joseph Stamp was a dentist for more than 60 years. Strangely enough, the man kept every tooth he ever pulled and used them to build the block over the years. The project spread over a period of decades. But before you totally dismiss the man’s ‘art’ project, know that the block was a memorial for his childhood dog. Still, it’s creepy.