Team, today's stair running drill is going to be a doozy. Pictured above is Jacob's Ladder, a staircase in the UK Overseas Territory of Saint Helena. Settlers built it as an inclined plane in 1829 to help bring agricultural products into Jamestown, the capital of the island. The staircase is now accessible to tourists, but the slope is really steep and not every portion has a railing, so do not look down. You can view several more pictures at the link.
Link -via Bit Rebels | Photo: Wikimedia user Deusdixital