Photo: jpspbj [Flickr]
An immense limestone wall in Cal Orko, Sucre, Bolivia, is home to a fantastic sight: thousands of dinosaur tracks made millions of years ago!
The immense Bolivian site is the rock face of an outcropping on a slant of 73 degrees, 80 meters high and 1.2 km long. There are more than 5,000 tracks of 294 different dinosaurs made during the second half of the Cretaceous period. [...] There is such an impressive amount of tracks that some of the researchers said this place seemed to be a dinosaurs’ dancefloor.
Fogonazos blog has more: Link - Thanks aberron!
It was originally a construction site. However, they had to stop when they found those tracks. :P