zoomed-out360Cities has published what they think might be the World’s Largest Spherical Panoramic image, an 18 Gigapixel Photo from the top of the TV Tower in Prague.

This image was shot on October 3, 2009. It is made from hundreds of individual photographs and stitched together into a single seamless panoramic image.

We have put the entire image, in full resolution, online for everyone to see. It’s possible to zoom in to an incredible level of detail.

In addition they’re having a contest.  Follow their clues to find the hidden treasure in the image, and win $100.

Prague TV Tower – World’s Largest Spherical Panorama. via 360Cities Blog