Were There Advanced Civilizations Before Us?

What If Advanced Civilizations Are Only Intelligent For A Short Time? | Unveiled

What If Humanity Were an Omega Civilization? | Unveiled

What If Humanity Was A Type Four Civilization? | Unveiled

What Happens If Humanity Becomes A Type-2 Civilization?

What If Humanity Was A Type V Civilization? | Unveiled

What If Humanity Was A Type V-minus Civilization? | Unveiled

What If Humanity Was a Type 3.5 Civilization? | Unveiled

What If Humanity Was A Type 0 Civilization? | Unveiled

What Happens If Humanity Becomes A Type-1 Civilization?

What Happens If Humanity Becomes A Type-3 Civilization?

What If Humanity Was A Type III-Minus Civilization? | Unveiled

What If Humanity Was A Type III Civilization? | Unveiled

What If Humanity Was A Type VI Civilization? | Unveiled

What If Humanity Was A Type IV-minus Civilization? | Unveiled

What If Humanity Was a Type VII Civilization? | Unveiled

What If Humanity Was A Type I Civilization? | Unveiled

Types of Alien Civilizations - Space Documentary 2018 HD part 3/3

Types of Alien Civilizations - Space Documentary 2018 HD part 1/3

Scientists Say Other Advanced Civilizations Have Likely Existed In Universe

What If Humanity Lives In a Level III Multiverse? | Unveiled

UN calls on humanity to end ‘war on nature’

10 Massive Questions About Future Civilizations | Unveiled XL Original

25 Bizarre Discoveries In The Deep Sea | Unveiled XL

Everyday Life In a Level IV Multiverse | Unveiled (+Mystery Ep.)

What If Physics Is Wrong? | Unveiled

20 Egyptian Gods and Goddesses | Unveiled

Are We Living On Someone Else's Fingertip? | Unveiled (+Bonus Ep.)