![Opportunity Facts](https://webarchive.library.unt.edu/eot2008/20080922203709im_/http://solarsystem.nasa.gov/missions/images/miss-mer_b-facts.gif)
Opportunity traveled roughly 491 million km (305 million miles) on its journey to Mars.
On the surface, the rover moves at a top speed of 5 cm (2 inches) per second.
Opportunity's panoramic camera will reveal Mars at about the same height as an adult person.
Both rovers carry a unique camera calibration target in the shape of a sundail (pictured above).