Years ago most schoolchildren in the US "knew" that if you dig a hole straight down through the earth you end-up in China. But of course that's not true, no matter where you are in the US. From nearly anywhere in the contiguous 48 states you end-up in the Indian Ocean.
Earlier this week Microsoft announced that it is making some of the imagery used in its Virtual Earth platform available for purchase (more on Virtual Earth in our VE SDK profile). The imagery, taken with Microsoft's proprietary UltraCam shown below is available for approximately 200 cities (in high resolution and averaging less than two years old).