Archaeologists working at Fyvie Castle, near Turriff, Scotland, expected to find a 16th century garden. Instead they discovered evidence of the castle's 13th century defenses. (video)
Post holes found in the area of the garden held shards of 13th century pottery. "Initially when I was digging down one of these post holes I found a huge piece of 13th century pottery which I knew hadn't been moved around a lot, so I was thinking there was probably some structure underneath," said archaeologist Alison Cameron. Experts had previously known nothing about the medieval defenses of the castle.