The Medieval Legacy

Angels and Demons: Decoded

The Medieval World

The World's Greatest Churches

Da Vinci Code Decoded

Books that Matter: The History of the Decline and Fall of the Roman Empire

The Foundations of Western Civilization

Renaissance: The Transformation of the West

Secrets of the Code

The Gaudi Code

The History of Spain: Land on a Crossroad

After the Plague

Illuminating Angels and Demons

Charlemagne: Father of Europe

Rick Steves' Luther and the Reformation

Italy's Invisible Cities