The Mistress of the World, part V: Ophir, the city of the past (1920)

As Madsen and Maud explore the city of Ophir, they witness an ancient ritual performed by the residents. The two are discovered, and with strangers desecrating the city's sacred ground, Maud is to be sacrificed to the goddess Ophirs, while Madsen is taken to the Sabytes, an enslaved native tribe.