12. Most Valuable Toys

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From Lionel Trains to video games, for the right collector our cherished childhood toys can be worth millions! Over the last three decades, people have paid some truly outrageous prices to get their hands on that elusive toy they always wanted. But which ones are the most valuable of all time?

7. Happy Accidents

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Two chance discoveries in the 1950s turn mundane industrial materials into legendary toys. Etch A Sketch and Play-Doh will rake in billions for decades to come, but not everyone will reap the rewards.

5. Mighty Mutant Mayhem

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The Teenage Mutant Ninja Turtles high kick their way into the action figure market in the late 1980s, opening the door for a new kind of martial arts toy. But their place at the top is soon challenged by a mighty morphin phenomenon that takes the world by storm.

4. Game Night Legends

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In the 1970s, the board game industry is aimed almost entirely at children, until a literal game changer comes along in Trivial Pursuit. Redefining the possibilities for adult fun, it opens up a whole new genre.

3. Video Game Visionaries

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Thanks to the industry-defining innovations of three men through the creation of games like Super Mario Brothers, The Legend of Zelda, and Pokémon, Nintendo goes from a struggling playing card company to a video game juggernaut.

2. Mind Game Masters

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Before World War II, board games are mostly simple, but postwar peace and prosperity reveals a demand for more challenging pastimes. After decades of struggle, three different innovators break the mould.

1. Transforming Toy Invasion

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In 1983, underdog company Tonka sets out to bring a game-changing toy from Japan to America: the transformable robot. But they're soon confronted by industry giant, Hasbro, who has its own competing toy line. It's a true David vs. Goliath story, as both race to rule this new frontier.