And you may last 149 million years.
Detail of the quarry wall -- Quarry Exhibit Hall in the Dinosaur National Monument just north of Vernal, Utah.
The wall contains approximately 1,500 dinosaur bones. First unearthed in the early 1900s, 149-million-year-old fossilized bones from hundreds of dinosaurs were unearthed and many shipped to prominent natural history museums around the country - most notably to the Carnegie Museum of Natural History in Pittsburgh. In 1957 it was decided to stop excavating the bones and to build a structure to protect the hillside containing them from the elements and allow the public to view them – and even touch some of them.