United Nations Data - A resource of statistical information from the United Nations. You can find out things from the # of Internet users in a country to average household income.
Cultural Crossing - Choose a country to find out about culture and behavior in areas including the basics, business interactions, and for students (most of the tips are directed at college/university students).
What's 4 Eats - International Recipes and Cooking Around the World
TIP ON IMAGE SEARCHING If you use Google images, do a search and then click on the gear. Choose advanced search! Scroll down to the section that says usage rights and choose free to use & share. Cite that source in your works cited. It's good practice to also put the URL somewhere on the slide as well.
Pixabay has great copyright friendly images as well.