Vis­it­ing the Maropeng Vis­i­tor Cen­tre in Gauteng’s Cra­dle of Humankind World Her­itage Site? Here’s what you can expect, from the pre­his­toric Tumu­lus mound to the inter­ac­tive exhi­bi­tion and boat ride, plus plen­ty of fun and fam­i­ly-cen­tred enter­tain­ment in between.