Mysterious Lands and Peoples (1991 book)

Mysterious Lands and Peoples is a book in the Time-Life Mysteries of the Unknown series that, per the publisher, "discusses legends of lost continents, examines claims that early humans were visited by extraterrestrials and given advanced knowledge, and looks at King Arthur, Prester John, Angkor Wat, Machu Picchu, Petra, and Easter Island."