7.69 avg 12 episodes 7.9 → 8.2 46 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Knights Templar | 7.9 | 34 |
| 2 | Atlantis | 8.0 | 33 |
| 3 | Ramses' Egyptian Empire | 7.8 | 25 |
| 4 | Athens: Ancient Supercity | 7.7 | 21 |
| 5 | Secret Cities of the A-Bomb | 7.6 | 23 |
| 6 | Hitler's Supercity | 7.7 | 26 |
| 7 | Jesus' Jerusalem | 7.4 | 23 |
| 8 | Churchill's Secret Bunkers | 7.5 | 22 |
| 9 | The Real Dracula | 7.3 | 28 |
| 10 | Braveheart's Scotland | 7.6 | 27 |
| 11 | The First Christians | 7.6 | 20 |
| 12 | The Pagans | 8.2 | 22 |
7.25 avg 19 episodes 7.4 → 6.8 46 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Seven Wonders of the World | 7.4 | 19 |
| 2 | Kama Sutra | 6.2 | 10 |
| 3 | Secret A-Bomb Factories | 7.0 | 9 |
| 4 | Henry VIII's Mega Structures | 7.6 | 13 |
| 5 | Secret U.S. Bunkers | 7.5 | 14 |
| 6 | Herod the Great | 7.5 | 16 |
| 7 | Building the Titanic | 7.5 | 18 |
| 8 | Sin City of the West | 7.1 | 12 |
| 9 | The Vikings | 6.9 | 14 |
| 10 | Al Capone's Secret City | 7.9 | 12 |
| 11 | Lost Superpower of the Bible | 7.3 | 14 |
| 12 | Stalin's Supercity | 7.5 | 14 |
| 13 | City of Armageddon | 7.4 | 8 |
| 14 | Jekyll & Hyde | 7.1 | 21 |
| 15 | Age of Airships | 8.0 | 7 |
| 16 | Ivan the Terrible's Fortress | 6.8 | 12 |
| 17 | Pirates of the Caribbean | 7.8 | 16 |
| 18 | Taj Mahal | 6.4 | 13 |
| 19 | Lost City of Aphrodite | 6.8 | 13 |
