You can manually display zoomable featured image on single post screens via [zoom] shortcode.
Most WordPress themes displays the featured images when they are set on content editing screen and hides when the user unset the featured image i.e. post thumbnail.
“A picture is worth a thousand words. How many words is a video worth?” says Alexander Hoereth, developer of Featured Video Plus, a WordPress plugin. He has programmed an awesome WordPress plugin that allows you to display featured videos in place of featured images i.e. post thumbnails.
CWP MegaResponsive is the brand new WordPress theme with Primary Menu, Footer Menu & Left Sidebar menu locations, Inbuilt AJAX Powered Infinite Scroll feature.
Future is a simple beautiful, responsive WordPress theme made with Bootstrap 3 framework. It provides you a clean, creative, feature-rich and responsive multipurpose layoit that is good for creative agencies, creative portfolios, freelancers or for any purpose. Its easy responsive layout automatically adapts to the screen size and on small screens its menu automatically folds itself and gives dropdown box.