There are some great photos from all over the world on this page. If you’re working on Present Continuous, it’s a great opportunity to describe what’s happening in the photos. This image from Hong Kong shows very clearly how crowded the city is. It reminds me of living in Ho Chi Minh City, Viet Nam, because buildings there are also quite tall, streets are quite narrow, and there are very few wide, open areas. I really missed the big Canadian sky while I lived there, although the energy in the streets was always exciting.