"Landing pages" are pages without one primary chunk of content. Use them when you want a page with multiple content items of similar importance. They may be used as home pages, section home pages, galleries, etc. Only Site Builders can create and edit Landing pages.
Unlike Content Pages, when you assign child Landing Pages (sub-pages) to parent Landing Pages (top-level) pages, a local menu (sidebar) will NOT display on the left side of the page. When you assign child Content Pages to parent Landing Pages, a local menu will only display on the child Content Pages.
When you create a new Landing page, give the page a title, decide whether or not you would like the page to reside within a menu, and modify the URL alias if desired.
Once you've published your Landing page, the page will look like it has nothing on it. This is normal. To add content to the page, use the "Customize this page" and "Change this layout" options at the bottom of the page to add widgets. See Layouts and Widgets for more information.
Landing Pages and Local Menus
If you add a Landing page to a menu (you must add a Menu Link Title if so) and then add Content pages as sub-pages, the Landing page itself will not display a local menu containing the sub-pages. If you would like a sub-menu for your Landing page, use the "Add Submenu" widget option (see Types of Widgets).
However, the local menu will show up on the individual Content pages!
Example of Landing page without a local menu:
Example of Content page that is the child (sub-page) of a Landing page:
If you would like to add sub-items to Landing pages and have no local menu anywhere (not on the sub-items as well as the top-level item), then you will need to create the sub-items as Landing pages as well.
Example of a Landing page that is a child (sub-page) of a Landing page: