The History Channel: Lost Worlds

From the castle of the real Count Dracula to the Super City of Adolf Hitler, history is full of temples, fortresses, lost civilizations, and secret worlds that have been left behind by the passage of time. But a team of field investigators and engineering experts went out into the world in search of clues about these great feats of engineering, technology, and culture in order to bring them back to life with modern-day graphic technology. [History.com]