The Well-Tempered City: What Modern Science, Ancient Civilizations, and Human...

Edgar Cayce's Atlantis and Lemuria: The Lost Civilizations in the Light of...

The Clash of Civilizations and the Remaking of World Order

Ancient America: The Great Civilizations

Healing from the Source: The Science and Lore of Tibetan Medicine

Voices of the Rocks: A Scientist Looks at Catastrophes and Ancient Civilizations

The Wrath of Nations: Civilizations and the Furies of Nationalism

The Barbarians: Lost Civilizations