This site is a German Language site but downloading the fottage is easy and i have translated the license beolow.

From time to time we add footage on this page, which you may use freely. A license can be found here. It is free and under no obligation to name the author.

Some of the videos are on Vimeo. To download the videos the user must be logged in. Signing up will cost one minute, free and worthwhile. Some of the footage has no sound.