Easter Island, Chile, it's 163 square kilometers, is intriguing – if not somewhat eerie – inhabited by the 887 moai statues. Built between 1110 and 1680 AD, the maoi statues are said to have been built out of respect for the elders and deceased of tribes on the island.
Kilimanjaro is the highest mountain in Africa and the highest 'walkable' mountain in the world. The trek to the summit is magnificent and spectacular 5 to 9 night undertaking, to rank amongst the greatest outdoor challenges on the planet. I will be hiking it one day!