From www.wdwinfo.com

Disney releases time-lapse video of Seven Dwarfs Mine Train construction
May 6, 2014

As Walt Disney World gets closer to opening its newest Magic Kingdom attraction, the Seven Dwarfs Mine Train, a new time-lapse video has been released. The 30-second video shows construction on the attraction from the beginning stages in 2010 to the current completed project.

This family-friendly roller coaster takes guests into the jewel mine as they see the story of Snow White unfold around them. The ride vehicles are designed to look like the dwarfs used axes to carve them out of wood and a new ride system allows the cars to swing back and forth on the track. The official opening date for the attraction is May 28, 2014.