a previous post. If you're creating videos outside the U.S., you should review a principle known as Panoramafreiheit. As for the people in your videos, you're generally fine photographing people in public places as they have no reasonable expectation of privacy. Problems will develop if the website deliberately either: (1) makes these people appear in a bad light -- for example, the travel video has a section entitled "The Amsterdam Red Light District" and shows two tourists who do not work there; or (2) you use screenshots of individuals in a manner that makes it seem as if they are promoting the site -- for example, the website creates banner ads using screenshots of individuals seen in your videos.
Property Release. If you need to obtain a release, here's a standard property release (also known as a 'location release') from our book, Getting Permission. You can use this release for buildings that are copyright protected or are not viewable from public space.