Ancient Aliens (2010) | Season 21

1 The Top Ten Extraordinary Discoveries

• 2025-02-07
• 42m

2 The Top Ten Mysterious Monoliths

• 2025-02-14
• 42m

3 The Top Ten UFO Crashes

• 2025-02-21
• 42m

4 The Top Ten Unexplained Technologies

• 2025-02-28
• 42m

5 The Top Ten Secret Projects

• 2025-03-07
• 1h 0m

6 The Top Ten Mysterious Mountains

• 2025-03-14
• 1h 0m

7 Mysteries of the Aztecs

• 2025-03-21
• 1h 0m

8 The Glowing Orb Phenomenon

• 2025-03-28
• 1h 0m

9 The Legacy of J. Allen Hynek

• 2025-08-29
• 1h 0m

10 The Volcano Factor

• 2025-09-05
• 1h 0m

11 The Birdman Mystery

• 2025-09-12
• 1h 0m

12 The Abduction Files

• 2025-09-19
• 1h 0m

13 The Giants

• 2025-10-02
• 1h 0m

14 Aliens In Our Midst

• 2025-10-09
• 1h 0m

15 Britain's UFO Files

• 2025-10-16
• 1h 0m

16 Mysteries Of The Norse Gods

• 2025-10-23
• 1h 0m

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