Interesting for teachers doing world cultures! Whether you're abroad, or going out to a foreign restaurant locally, you need to be sensitive to the dining etiquette of the culture. This chart gives you a broad overview of table manners around the world.
Finally you can own a personal glass bottom boat. With the Clear Blue Hawaii Molokini Kayak it is technically not a glass bottom boat, but an entire kayak created out of clear polycarbonate with an aluminum frame. Imagine the fun of sliding along in this