Greg Wimmer and his son Alex climbed Mount Kilimonjaro together, reaching the summit. Mount Kilimonjaro is the highest peak in Tanzania, Africa. Their goal was to climb all seven wonders of the world before Alex turned 30 years old. The article discusses their climb up Kilimonjaro, which was the first mountain climbed towards completing their bucket list goal. It also provides information about vaccinations needed for traveling abroad.