Forbidden Caves Inside Antarctic Pyramids *Marathon*

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Published Jun 19, 2026

This marathon explores forbidden caves, ancient alien encounters before recorded history, and the mystery of pyramids in Antarctica, uncovering theories that challenge everything we think we know about humanity’s past.

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"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.