Victoria Falls is one of the seven natural wonders of the world. For one of the most exhilarating experiences in the world head to Zambia to jump in Devil’s Pool which is literally on the lip of the falls. Time your visit between September and December, when this natural rock pool is shallow enough for adults to safely swim in. Feeling even more adventurous? Peer over the edge as the waterfall drops more than 300 feet. (The concession at Livingstone Island that provides access to this natural wonder is managed by Tongabezi Lodge.) Photo credit: Ted Stedman.