Sound Transit is an intriguing site. You pick places you want to travel to in the world and, in addition to showing you your “route” on a map, you hear audio from those places.
It would certainly add a “twist” to my Geography class. English Language Learners can email the url of the “trip” they “booked,” post it on a website or blog, and then write a description of it.
I’ve placed the link on my Geography page under the Sites That Cover Many Areas section.