Wikimedia Commons is a free media repository (storage area) where you can find photos and images, videos, audio clips and more. While most of what you’ll find on the site is free for you to use for personal and educational purposes, you should be in the habit of checking for copyright status anyway.
If you’re looking for something specific, you can use the search box at the top of the page, or you can browse the site by topic, location, type, and more:
If you just want to browse for something to read or listen to or do in English, or just for inspiration, there’s a Picture of the Day, a Video of the Day, a Photo Challenge, and more on the top page. The photo challenge has many, many really fantastic photographs that you could use to help you introduce all kinds of topics, or to inspire a research project, orjust to describe as a way of practicing your English.
This photo is an entry in a July 2014 photo challenge called “Tools of the trade”.
In the Sounds category, you can find short audio clips of many different things, including pronunciations of different words in different languages.
There’s a lot to explore on this site.