WMT Horizontal Gridfolio
The WMT Horizontal Gridfolio 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 grid gallery 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 prove URL that will be opened when the thumbnail is clicked.