Earning passive income doesn't need to be difficult. You can start this week. The Lego 6086 Black Knight’s Castle was introduced in 1992 for $85, according to Brickfact.com. Since then ...

Some Lego sets have skyrocketed in value but behind the eye-popping price tags is a dark side: an underground market that ...

So, dust off those older Lego sets and research their value. The Lego 6086 Black Knight’s Castle was introduced in 1992 for $85, according to Brickfact.com. Since then, the value has risen to $ ...