Tune in to new episodes of Modern Marvels, Sundays at 10/9c on The HISTORY Channel.

Fortification evolved as man tried to defend his territory from attack. From fenced-in hills to walled cities to impenetrable forts, strongholds of the past echo the history of battles for control. See more in Season 1, "Line of Defense." #ModernMarvels
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Follow Adam Richman as he travels the country and tries the most iconic and forgotten foods of the 1980s. Watch new episodes of Adam Eats the 80s Sundays at 10/9c on The History Channel.

Watch more Modern Marvels on YouTube in this playlist:
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"Modern Marvels" goes beyond the basics to provide insight and history into things we wonder about and that impact our lives.

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