Insane or Inspired?

In this finale episode, 25 Most Outrageous Oversized Objects takes an eye popping look at the largest creations of the human imagination. From a massive guitar-shaped bicycle to the world's largest handheld yo-yo, it's an hour packed with everything genius and giant rolled in to one. Make room for this titan of a show that proves size does matter.

25 INGENIOUS MECHANICAL MARVELS takes an extraordinary look at the biggest, boldest, and most bizarre mechanical creations out there.

25 Awesomely Ingenious Ideas takes you on a wild ride to flaunt the most fantastic, frenzied and foolish endeavors caught on tape.

During "25 Biggest Backyard Stunts", everyday men and women will strive to push the boundaries of creativity (and safety) to make their ingenious backyard stunts even more outrageous.

Since invention is the gateway to the future, "25 Craziest Backyard Inventions" will showcase the world's most fascinating and ridiculous backyard trailblazers.

These fearless, everyday individuals attempt feats seen only in the pages of comic books, like making flames shoot of your hands and constructing zombie-killing machete-slingshots.