Where are my views being used?
Open the View and you'll see if it is a page or block, if it is a page you can see the path to the page under Page Settings, if it is a block just look for that block in the list (/admin/structure/block).

The block is named like Views:[view_name] and if it is disabled I think you can safely remove that View, if not you can see the region and where you can see that block when you edit block and look at Visibility settings.

I think that there is no other automated way to find out where some View is used.