If you have an interest in finding old bottles, but don't know where to start, the best place is probably along the edge of a river. Rivers are some of the most populated areas in the world, and have been throughout history. Bottles are one of many interesting items you could find near a river. If you find what you think is an artifact, research the area and look into the "Archaeology laws", or antiquities act to make sure this is not a protected area. Outhouses are also a great place to find old antique bottles. Several of the old houses that I metal detected (Pre 1920) had garbage areas that were great for finding bottles.