The "Lost World" (El Mundo Perdido) of towering table mountains ("tepuis") stretches across southeastern Venezuela's rolling Gran Sabana (Grand Savanna), 35,000 square miles of grassy plains crisscrossed with rivers and dotted by rainforests and waterfalls.

The Lost World's craggy peaks and twisted rock sculptures may look like scenery from a Steven Spielberg film, but the main artist at work on this production is age.

No dinosaurs here, but the towering tabletop mountains of Venezuela's Lost World are no less surreal.

Ancient tepuis of Venezuela: gravity-defying rock formations, thundering falls, and singular flora and fauna.