One of the first things to do when planning out a new website is to work out all of the content that will be in the site. You then divide that up into sections and then into various levels of navigation. Navigation menus have really important role in any website. For big sites full with a lot of pages and articles, drop down menus and tabs are popular because they can make it a lot more easier to navigate and move through site, also you can save space on website displaying content on dynamic tabs. Here is a hand-picked showcase of Drop Down Navigation Menus for your inspiration.