[trevyn]

>The only rule is “The structure needs to stand on its own.”

Melt it down and recast it, duh. :)

[vacri]

Well, taking away the implicit rules, the limit becomes simply "the tallest structure we can build with current technology".

For example, put the four Lego pieces on top of the Eiffel Tower, and you've now created a structure that is height "Eiffel Tower + Lego" - and it's made with those four pieces ('with', not 'only with' :) )

[tdy721]

Well yeah... but there's this: http://www.space.com/12546-lego-figures-jupiter-juno-spacecr...

[runarberg]

I think that is cheating, because after the recasting is done you are left with a single piece. The instructions clearly say 4 pieces ;)

[presidentender]

Recast the individual pieces, then.

[Moru]

I'm sure I can do better with a good knife.

[vlasev]

Or recast as one long one and cut it up.

[5ilv3r]

People like you ruin rubix cubes. :p

[jacquesm]

Nah, they break one piece out, flip it and then put it back in, then mess up the pattern and gift it to someone for their birthday.

[dnautics]

I got my girlfriend a 5x5x5 for her birthday and she accused me of swapping tiles when she got stuck on the last two. Almost ended the relationship.

[tdy721]

The lesson here: If you gift a puzzle, you better be able to solve the puzzle ^.^

[b3lvedere]

Or cut all the pieces into as much long pieces as possible, then stack them.