Interesting way to visualize what it would be like if you lived in another country. IfItWereMyHome compares your part of the world with another to see how you life would differ. (EXAMPLE: If you lived in Afghanistan you would 4x more likely to be unemployed.)
An ever-evolving collection of "the highly recognizable symbols that form the world's visual language" - very similar to AIGA's set of passenger/pedestrian symbols.