Orthographics libraries?

Hello Polycount, i'm a 17 year old game dev student from the UK.

I've been studying game development at college for a little over a month and I remember our tutor showing us a website where it contained a whole load of orthographics images for reference use in Maya etc.

Could anyone provide me with the links to any websites such as this? I've tried to find them but no such luck, the only one I found contained only blueprints of cars haha.

Thanks in advance.

EDIT: I found several more but were limited to only one subject such as anatomy or car blueprints.