A lava cave holds the exact shape of the tree that burned inside it. A field in Wisconsin holds the hollow molds of every giant fibreglass animal a workshop ever cast.
A Cold War missile radar decommissioned before it saw real use
→ atlasobscura.com
Hundreds of abandoned molds behind a giant-statue workshop
→ atlasobscura.com
A cave in the shape of a tree that burned away
→ atlasobscura.com
Radio catalogs from 1929, scanned and free to download
→ pastcatalogs.com
A parts counter for machines that stopped shipping decades ago
→ newold.computer