People try out the new 850-foot-long (259 metres) SlotZilla Zipline at the Fremont Street Experience in downtown Las Vegas, Nevada, on April 30. A higher and longer 1700-foot (518-meter) Zoomline, which will propel flyers in a horizontal "superman" position at speeds up to 35 mph (56 kph) , is expected to open in June. The zip-line, part of the $12 million SlotZilla project, opened on April 27. Reuters/Las Vegas Sun/Steve Marcus