Plain of Jars
The hills around Phonsavan in central Laos are littered with giant stone jars of unknown ancient origin. The area was also the target of intense carpet bombing during the Vietnam War. As a result, only 9 of the 90 recorded jar sites have been cleared of unexploded ordinance, and only three of those are regular stops on the main tourist circuit. They are, creatively enough, known as Jar Sites 1, 2, and 3!