Are any animation studios open to the public for tours? There are lots of anime fans all over the world, and Japan does promote the industry to boost tourism. 

However, I am unaware of any animation studios that allow visitors. I'm sure a lot of visitors would like to peek inside and see what it is like - perhaps not the working areas, but the general surrounds &amp; going-ons. 

I have noticed one tour group doing such a trip - but for the traveller who goes without a guide group - are there any options?
Studio Ghibli museum
The Studio Ghibli museum in Tokyo is open to public tour, for me and probably for other regions too, you have to book three months in advance to purchase tickets.