In the latest episode of Shia Hauls he unboxes and assembles the Dragon Ball DVD Diorama Tower. 

What makes the diorama tower such a valuable grail is the fact it was never made available for sale. In order to get it you had to mail in paperwork from each individually sold DVD in exchange for a specific part of the tower.

Bottom line: you have to buy every single DVD release to complete the set!

When the set is fully assembled it comes in around a whopping 3 feet tall!

Dragon Ball DVD Diorama Tower

 DVD DIORAMA TOWER is a grail amongst grail. It was never for sale. A paperwork from each individually sold DVD must be collected and mailed in exchange for a specific part of the tower. Bottom line: you have to buy every single DVD releases!