Leonardo da Vinci created the two most famous paintings in history, The Last Supper and the Mona Lisa. But in his own mind, he was just as much a man of science and engineering. With a passion that sometimes became obsessive, he pursued innovative studies of anatomy, fossils, birds, the heart, flying machines, botany, geology, and weaponry.

Michelangelo, God's Architect is the first book to tell the full story of Michelangelo's final two decades, when the peerless artist refashioned himself into the master architect of St. Peter’s Basilica and other major buildings. When the Pope handed Michelangelo control of the St. Peter’s project in 1546, it was a study in architectural mismanagement, plagued by flawed design and faulty engineering.

Brunelleschi's Dome is the story of how a Renaissance genius bent men, materials, and the very forces of nature to build an architectural wonder we continue to marvel at today. Denounced at first as a madman, Brunelleschi was celebrated at the end as a genius. He engineered the perfect placement of brick and stone, built ingenious hoists and cranes to carry an estimated 70 million pounds hundreds of feet into the air, and designed the workers' platforms and routines so carefully that only one man died during the decades of construction.

Look beyond the abstract dates and figures, kings and queens, and battles and wars that make up so many historical accounts. Over the course of 48 richly detailed lectures, Professor Garland covers the breadth and depth of human history from the perspective of the so-called ordinary people, from its earliest beginnings through the Middle Ages.

Take a riveting tour of the Italian peninsula, from the glittering canals of Venice to the lavish papal apartments and ancient ruins of Rome. In these 24 lectures, Professor Bartlett traces the development of the Italian city-states of the Middle Ages and the Renaissance, showing how the modern nation of Italy was forged out of the rivalries, allegiances, and traditions of a vibrant and diverse people.

Charles Darwin's theory of organic evolution-the idea that life on earth is the product of purely natural causes, not the hand of God-set off shock waves that continue to reverberate through Western society, and especially the United States. What makes evolution such a profoundly provocative concept, so convincing to most scientists, yet so socially and politically divisive? These 12 eye-opening lectures are an examination of the varied elements that so often make this science the object of strong sentiments and heated debate.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

As recently as 1990, it seemed plausible that the solar system was a unique phenomenon in our galaxy. Thanks to advances in technology and clever new uses of existing data, now we know that planetary systems and possibly even a new Earth can be found throughout galaxies near and far.

Between 1861 and 1865, the clash of the greatest armies the Western hemisphere had ever seen turned small towns, little-known streams, and obscure meadows in the American countryside into names we will always remember. In those great battles, those streams ran red with blood-and the United States was truly born.

"It doesn't take an Einstein to understand modern physics," says Professor Wolfson at the outset of these 24 lectures on what may be the most important subjects in the universe: relativity and quantum physics. Both have reputations for complexity. But the basic ideas behind them are, in fact, simple and comprehensible by anyone. These dynamic and illuminating lectures begin with a brief overview of theories of physical reality starting with Aristotle and culminating in Newtonian or "classical" physics.

The 20th century was a hotbed of musical exploration, innovation, and transformation unlike any other epoch in history. Ranging across the century in its entirety, these 24 lectures present a musical cornucopia of astounding dimensions - a major presentation and exploration of the incredible brilliance and diversity of musical art across a turbulent century. Far more than simply a series of lectures, the program comprises a huge and many-sided resource for discovering the endless riches of 20th-century concert music across the globe.

In this 12-lecture meditation on Aristotle's Nicomachean Ethics, you'll uncover the clarity and ethical wisdom of one of humanity's greatest minds. Father Koterski shows how and why this great philosopher can help you deepen and improve your own thinking on questions of morality and leading the best life. The aim of these lectures is to provide you with a clear and thoughtful introduction to Aristotle as a moral philosopher.

In The Pagan World: Ancient Religions Before Christianity, you will meet the fascinating, ancient polytheistic peoples of the Mediterranean and beyond, their many gods and goddesses, and their public and private worship practices, as you come to appreciate the foundational role religion played in their lives. Professor Hans-Friedrich Mueller, of Union College in Schenectady, New York, makes this ancient world come alive in 24 lectures with captivating stories of intrigue, artifacts, illustrations, and detailed descriptions from primary sources of intriguing personalities.

Science and technology are, without a doubt, two forces that will change the way you live your life in the coming months, years, and decades. And in recent decades, these forces have evolved and developed at a lightning-fast pace. Explore the many possibilities of what your future may look like with these 24 lectures: a scientifically accurate and enlightening survey of today's most advanced research in fields such as engineering, biology, chemistry, and theoretical physics.

What is life? What is my place in it? What choices do these questions obligate me to make? More than a half-century after it burst upon the intellectual scene - with roots that extend to the mid-19th century - Existentialism's quest to answer these most fundamental questions of individual responsibility, morality, and personal freedom, life has continued to exert a profound attraction.

Michelangelo, God's Architect is the first book to tell the full story of Michelangelo's final two decades, when the peerless artist refashioned himself into the master architect of St. Peter’s Basilica and other major buildings. When the Pope handed Michelangelo control of the St. Peter’s project in 1546, it was a study in architectural mismanagement, plagued by flawed design and faulty engineering.

Take a riveting tour of the Italian peninsula, from the glittering canals of Venice to the lavish papal apartments and ancient ruins of Rome. In these 24 lectures, Professor Bartlett traces the development of the Italian city-states of the Middle Ages and the Renaissance, showing how the modern nation of Italy was forged out of the rivalries, allegiances, and traditions of a vibrant and diverse people.

Why is Benjamin Franklin so compelling? What made him so successful in his day? And why has he continued to influence generations of Americans? Tackle these questions and more in The Age of Benjamin Franklin, a thorough - and sometimes surprising - course that presents a full portrait of a personality that defies easy definition.

In 1508, despite strong advice to the contrary, the powerful Pope Julius II commissioned Michelangelo Buonarroti to paint the ceiling of the newly restored Sistine Chapel in Rome. During the four extraordinary years that Michelangelo spent laboring over the ceiling, power politics and personal rivalries swirled around him. He battled ill health, financial and family difficulties, inadequate knowledge of the art of fresco, and the Pope's impatience - a history that is more compelling than most novels.

Between 1861 and 1865, the clash of the greatest armies the Western hemisphere had ever seen turned small towns, little-known streams, and obscure meadows in the American countryside into names we will always remember. In those great battles, those streams ran red with blood-and the United States was truly born.

From the icy front lines of Soviet Russia to the bombing campaigns against Britain to the American submarines lurking beneath the choppy waters of the Pacific, step into the shoes of remarkable everyday men and women in World War II: Up Close and Personal. Your lecturer is Dr. Keith Huxen, a historian and project director at The Henry M. Jackson Foundation, which supports the Defense POW/MIA Accounting Agency.

How is it that our brain creates all the subjective experiences of our lives every single day - the experiences we call reality? That is the mind-body problem. In Mind-Body Philosophy, Professor Patrick Grim of the State University of New York at Stony Brook leads an intellectually exhilarating tour through millennia of philosophy and science addressing one of life's greatest conundrums. But you won't just be a spectator as Dr. Grim engages and encourages each of us to come to our own conclusions.

What is life? What is my place in it? What choices do these questions obligate me to make? More than a half-century after it burst upon the intellectual scene - with roots that extend to the mid-19th century - Existentialism's quest to answer these most fundamental questions of individual responsibility, morality, and personal freedom, life has continued to exert a profound attraction.

These 12 illuminating lectures paint a rich and detailed portrait of the life, works, and ideas of this remarkable figure, whose own search for God has profoundly shaped all of Western Christianity. You'll learn what Augustine taught and why he taught it – and how those teachings and doctrines helped shape the Roman Catholic Church. These lectures are rewarding even if you have no background at all in classical philosophy or Christian theology.

Over the course of 24 lessons, including the eight meditation checkups within lessons, you will learn both what Zen has traditionally meant for East Asians and what it can mean for contemporary Westerners. Prepare to be challenged as Professor Davis asks you to set aside your preconceptions in order to open yourselves to what Zen masters who lived in the past and in distant lands have to teach you.

What can we still learn from C.S. Lewis? Find out in these 12 insightful lectures that cover the author's spiritual autobiography, novels, and his scholarly writings that reflect on pain and grief, love and friendship, prophecy and miracles, and education and mythology.

Jazz is a uniquely American art form, one of America's great contributions to not only musical culture, but world culture, with each generation of musicians applying new levels of creativity that take the music in unexpected directions that defy definition, category, and stagnation. Now you can learn the basics and history of this intoxicating genre in an eight-lecture series that is as free-flowing and original as the art form itself.

Locked inside the DNA of every species that ever lived are endless stories - about origins, ancestors, fate, and much more. Until recently, these secrets were completely inaccessible. But with the help of new technologies, scientists are now reading the hidden history of DNA, making remarkable discoveries about ourselves and our fellow species. Your gateway to this treasure trove of information is Unlocking the Hidden History of DNA, 12 informative and accessible lectures delivered by New York Times best-selling author Sam Kean.

Grasp the important ideas that have served as the backbone of philosophy across the ages with this extraordinary 60-lecture series. This is your opportunity to explore the enormous range of philosophical perspectives and ponder the most important and enduring of human questions-without spending your life poring over dense philosophical texts.