Well no, they are under trip advisor's license. You cannot just scrape them. They are from tripadvisor, are they?

I am just curious how this is done. I am also searching for a good source for images

You are using them from TripAdvisor.com and it pretty clear they have a policy permitting that. So I was wondering how this is done - do you guys have a custom contract?

Hi Fabian, what do you mean? those images are publicly available.