Perch atop a dragon or an elephant on the two-story carousel, check out the mini bowling alley ... a one-of-a-kind indoor roller coaster with a double-loop, double-corkscrew design.

(WYOU/CBS Newspath/WKRC) - Michael Chorba has turned his backyard into a wonderland of refurbished amusement park rides for his grandchildren, with the latest addition being a mini roller coaster.

Walt Disney wanted to build Space Mountain at Disneyland a decade before the indoor roller coaster forever altered the skyline of the Magic Kingdom a few years after the debut of the Florida theme ...