Photo by Temuulen. Mongolia and China use different railway track sizes, so when the train gets to the Mongolia-China border at Erenhot, cranes lift all the cars off the tracks so they can switch wheels underneath them.
Photo by Art Wolfe. Deer stones are meter tall stones standing upright in Mongolia and Siberia, carved with images of deer or reindeer. Most of them seem to have been constructed about three thousand years ago.