I built this one on bootstrap 4 with a number of extras. ie. Animate on scroll for photos and carousels, navbar animate on scroll, lightbox, google map embed, and font awesome.
I am using the page tree as a row builder instead of navigation.
I detached the menu system from the page tree to give more control on external links, single page website situations that need to link to sections, and add new window target options. It also lets you have different footer links vs header links this way. You can add something like a privacy policy to the footer and not the header and still have one place that controls your menus.
Extensions used:
Color Picker, Inputfield ACE Extended, Google map marker, MarkInPageTree, Media Library, and Hana Code.