As for the White House, I to thought at first glance that it had been altered, but I think that's just what the top of the building looks like. If you look at the TerraServer image of the same location [1], you'll see that it looks very much the same, and provides a higher res image (or at least oversamples it). You may also note that the east-ward shadow cast by the main part of the building onto the east wing matches up with all of the other small shadows cast by the white borders. If it were digitally altered, someone really took their time.
I'm no expert, but I'm not so sure about the White House and surrouding buildings being unaltered. The coloration of the roofs (rooves?) seems incredibly solid and even to be natural...
~Brian -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc
