Four Proposed Miami Developments Even Crazier Than City Square

via Miapolis.com

No, this is not Saruman's evil lair -- it's the tallest building in the world, proposed for Jungle Island.

​If developer Mark Siffin keeps getting his way, Miami's skyline could soon be bisected by two towering, 40-story digital billboards. Sure, the glowing monstrosities would probably induce regular epileptic seizures on the MacArthur Causeway, but they're far from the craziest plan ever foisted upon the Magic City.

Don't forget this is a town that thrived because of Henry Flagler's certifiably lunatic plan to build a railroad all the way through the Florida Keys. Loco land barons are our lifeblood. Click through for four real proposals so whacked-out that even we have rejected them (so far, at least):

via Miapolis.com

​Miapolis: Imagine a twin-towered, gold-hued phallus tipped with twin spikes like Saruman's evil lair soaring 3,000 feet above Biscayne Bay.

It's the world's tallest building -- putting Dubai's Burj to shame -- and it rises from the ashes of Jungle Island. Backer Guillermo Socarras still has a flashy website and claims to be lining up donors for Miapolis, but this one seems to have as much chance of materializing as a Kendrick Meek comeback.

courtesy David Fisher

Dynamic Tower: What's a worse idea than erecting a billion-dollar condo for the ultrarich at the height of America's worst recession in generations? How about an über-luxe skyscraper that freaking shape-shifts?

That's just what Italian architect David Fisher proposed in 2008 with his Dynamic Tower, a stack of 20,000-square-foot condos hung from a central column and constantly rotated by wind-powered turbines. If this thing can also morph into a combo Pizza Hut/Taco Bell, it might actually get some customers.