Roc Morin, Daily Mail (UK):
A collection of sports cards estimated to be worth more than $1 million has been discovered in an abandoned warehouse in Detroit.
Millions of the Topps cards were packed away in dust-covered crates, with thousands more strewn over the floor of the derelict building.
The mint-condition collectibles, dating from the late 1980s and 90s, were discovered by a team of urban explorers whose hobby is to venture into forgotten man-made structures. ...
At least one man, who goes by the name of Slanks, regularly frequents the factory to find cards to sell, claiming it has been his primary source of income.