Where's the static HTML?

When something is outputted to my screen, I would expect that term, tag, or text to be somewhere in the code or database. I'm having real problems finding these items though. The latest is in the Popular Content block, it says "All time:", and I would like to simply take this out, so that just the items in an unordered list are displayed. After doing several code searches through throughout the entire drupal folder, I can't find where that phrase is. Where is the bulk of the static html stored?