The UnXplained (2019)

S1E2 Mysterious Structures

For ages, historians and archaeologists have sought to uncover the secrets behind remarkable constructions such as the Great Pyramid of Giza, the Loretto Chapel staircase, and Coral Castle. What drove their creation, and how were they built? Will we ever discover the truth behind these architectural wonders, or could it be that they were designed to leave us in a state of wonder and intrigue indefinitely?