Blactro is easy website layout based on Windows 8 metro style UI. Horizontal sliding transition is applied for changing pages.
Smoke House CSS Template has an integrated drop-down menu system and fixed 2-column layout. This design used darkgray background color in 2 layers.
Simplex is free responsive template based on Bootstrap 3.0.0 and this layout works on both mobile and desktop devices.
Eco Tree is free template with 3-column layout. About page features different columns. Blog post includes comments with multiple levels.
Catalog theme is a HTML5-CSS3 template based on Twitter Bootstrap (version 3.0) that can work in any screen size and mobile devices.