One of the locations in the E3 reveal reminds me Saarthal from Skyrim. Could be either a mine or maybe an entrance to a vault down there. Recognize any other places from the gameplay reveal?
https://youtu.be/i7QK_yEgsV0?t=8m15s
Saarthal from Skyrim
http://img2.wikia.nocookie.net/__cb20120124090906/elderscrolls/images/b/bb/Saarthal.png