Hidden Horizons: Unearthing 10,000 Years of Indian Culture is a work of historical and cultural nonfiction by David Frawley and Navaratna S. Rajaram, first published in 2007. Created as a companion to the historical exhibits at Swaminarayan Akshardham, the book explores the origins and development of Indian civilization through archaeology, geology, linguistics, ancient literature, astronomy, and cultural history.

The authors argue that India's civilization extends back far beyond conventional historical timelines and examine evidence related to the Indus–Saraswati Civilization, the ancient Saraswati River, Vedic literature, archaeological discoveries, and early scientific achievements. They propose that the Harappan and Vedic cultures were closely connected and present a narrative of long-term cultural continuity across the Indian subcontinent.

Written for general readers rather than specialists, the book combines photographs, maps, illustrations, and summaries of archaeological findings with discussions of ancient texts and historical traditions. Its accessible style makes complex historical topics easier to understand while encouraging readers to explore India's cultural and intellectual heritage.

It is important to note that many of the book's central historical interpretations—particularly its conclusions about the chronology of Vedic civilization and its rejection of aspects of the Aryan migration model—remain controversial. While some scholars support elements of its arguments, many mainstream historians, archaeologists, and linguists dispute several of its conclusions. Readers interested in ancient Indian history may benefit from reading it alongside works representing a range of scholarly perspectives.