https://en.wikipedia.org/wiki/Skeleton
https://en.wikipedia.org/wiki/Skeleton_(sport)
https://en.wikipedia.org/wiki/Skeleton_Tree
https://en.wikipedia.org/wiki/Skeletonization
13 Best Skeleton Watches (From Affordable to Luxury)
Amazon.com: ShoppeWatch Skeleton Pocket Watch Mechanical …
Mechanical Skeleton Watch: Amazon.com