Watch

The UnXplained

Season 6, episode 3. This player now records resume state for the active profile so browse, account, and detail pages can bring you back here quickly.

Currently watching

S6 E3

Secrets of Ancient Structures

Scattered across the globe lie mysterious ruins that are buried in sand-swept deserts, perched atop towering mountains, and shrouded in the heart of dense jungles. These age-old structures stand as silent sentinels from the past, their true history seemingly erased by time. Can modern archaeology unravel the enigma of how-and why-these wonders were built?

SeasonPrevious episode Next episode

Watch state

Sign in to save resume state and recent activity

Watch history and continue watching stay tied to your active profile, so you can pick up later from browse, account, and detail pages.

Provider validated

Watching via moviesapi

No ads approved

Cast And Share

Open the player on the device you want to cast from

These providers run inside an external iframe, so the most reliable casting flow is to open the player in its own tab and use your browser or device cast controls there.

Open Player

AirPlay, Chromecast, and browser tab casting work best after opening the provider directly

Season 6

Back to series detail

Episode 1: The World Beneath Our Feet

Episode 2: The Time Travelers

Episode 3: Secrets of Ancient Structures

Now playing

Episode 4: Mysteries of the Vikings

Episode 5: Strange Stories of the Presidents

Episode 6: Bizarre Afflictions

Episode 7: Strange Technology

Episode 8: Unbreakable Codes

Episode 9: Strange Stories of World War II