Season
- Season 1 1993-12-10
- Season 2 1994-12-16
- Season 3 1995-08-20
- Season 4 1996-09-02
- Season 5 1997-08-17
- Season 6 1998-07-27
- Season 7 2000-01-03
- Season 8 2001-01-08
- Season 9 2002-01-02
- Season 10 2003-01-01
- Season 11 2004-01-16
- Season 12 2005-01-05
- Season 13 2006-01-04
- Season 14 2007-01-17
- Season 15 2008-01-07
- Season 16 2010-01-14
- Season 17 2010-10-29
- Season 18 2011-10-03
- Season 19 2013-07-16
- Season 20 2021-02-20
- Season 21 2021-07-25
- Season 22 2021-11-28
- Season 23 2022-02-16
Season 23 Episode
- Season 8 Battle Gear.
- Season 8 Proving Grounds
- Season 8 Commercial Jets
- Season 8 Apollo 13
- Season 8 Survival Technology
- Season 8 Chesapeake Bay Bridge and Tunnel
- Season 8 Garage Gadgets
- Season 8 Construction Machines
- Season 8 Hadrian's Wall
- Season 8 Monster Trucks.
- Season 8 Lighthouses
- Season 8 Computers
- Season 8 Engineering Disasters 3.
- Season 8 Chemical And Biological Weapons
- Season 8 International Airports II
- Season 8 Codes.
- Season 8 The M-16
- Season 8 The Colosseum
- Season 8 The World Trade Center
- Season 8 Hardware Stores
- Season 8 Saloons
- Season 8 More Gadgets
- Season 8 Cattle Ranches
- Season 8 Cannons.
- Season 8 Nuclear Subs
- Season 8 Air Shows
- Season 8 West Point
- Season 8 Quarries.
- Season 8 Diamond Mines
- Season 8 The House
- Season 8 Work Clothes
- Season 8 Bunkers.
- Season 8 Cemeteries.
- Season 8 War Games
- Season 8 Drive-Thru
- Season 8 Times Square
- Season 8 Los Angeles
- Season 8 Glass
- Season 8 Firing Ranges
- Season 8 The St. Louis Arch
Modern Marvels - Season 8 Episode 11 Lighthouses
7.90 44 minutes From the earliest known lighthouses, such as the Pharos of Alexandria, one of the Seven Wonders of the Ancient World, to modern-day automated buoys and solar-powered lantern rooms, this history of lighthouses is rich with personal stories of lighthouse keepers, daring construction efforts, and ingenious optical discoveries. Today, as lighthouses are usurped by more efficient aids to navigation, these elegant structures are being converted to bed-and-breakfast inns and environmental retreats.
