A large dropdown navigation menu that expands when you hover or click on it.

Instead of a basic list of links, it can show multiple columns, sections, or even images all at once. It's especially useful when your site has a lot of pages and you want to keep the navigation clean and organized.

I bring this up with clients a lot when we're talking about updating their website. It sounds technical, but honestly the concept is pretty simple once you see it in action.