WMT Media Grid
The WMT Media Grid - Joomla Component has a responsive layout and 4 predefined themes that you can use. Take a look Live Preview that is provided, where you can see in which way you can use this grid.
The WMT Media Grid can have unlimited number of images. When a thumbnail is clicked the lightbox can display IMAGES, or VIDEOS loaded from YouTube or Vimeo. You can also provide URL that will be opened when the thumbnail is clicked. You can also display unlimited number of Media Grid categories via different menu items.