Hidden Planet Week
In this installment of Rock Center's Hidden Planet series, originally published in February, NBC News Chief Foreign Correspondent Richard Engel travels to Mali, on the edge of the Sahara desert, to discover the city of Timbuktu.
In an unexpected departure from his usual beat of war-torn territories and areas of conflict, each month Engel sets off to find the most awe-inspiring, rarely seen locations around the globe.
