2. Hovering over the current entry's parent category (Daggers) to view siblings.
3. Hovering over the grandparent category (Weapons) to view its siblings (other grandparent categories).
Wowhead is a database of World of Warcraft information. The database provides a hierarchical subject taxonomy to describe items, and presents that hierarchy in the breadcrumbs for the item. When the user hovers ofer a branch in the breadcrumb trail, a drop down menu is displayed to show the node siblings and drill down to children.