Virtual travel through sound
Like the [“one-minute vacations”](http://quietamerican.org/vacation.html) I [previously discovered](http://www.ryskamp.org/brain/?p=1413), the Radio Aporee project collects ambient audio clips from around the world and plays them while displaying satellite photos of the location. They even have [an Android app](http://aporee.org/maps/mobile/info/) so you can take the experience mobile, and make your own recordings.
I like to record ambient audio and video from places I visit; playing the clips back later is a great way to transport your mind to another time and place.
[The Western Soundscape Archive](http://www.westernsoundscape.org/) is another great collection, containing natural sounds from the American West.