If you're looking to get a fully customized page on your site and happen to know HTML or know someone who does, you can fully write out and program your own webpage for your site. First you'll want to go over to "Pages" in the sidebar, then select "New Page".
Once you're in the configuration for a new page you'll want to select "Custom HTML" to create a HTML page. Make sure to configure the page name and url path as well. 
From there you will be displayed a page with a code editor in there you can write custom code to edit the body of the web page. You also have the option to utilize the "write" function within the code editor. By using what you know and the "write" function almost any page you can imagine are possible.
Happy coding!