Take a good look at these lighthouse photos. What do you notice?
Having visited many lighthouses in many locations, I have noticed that each is unique — each a different height, made of different materials, with different paint patterns — but not being a navigator, the real purpose of each light’s unique style and paint job never really crossed my mind.
When I visited the Tybee Island Light Station and Museum, near Savannah, Georgia, I learned the real and really quite obvious reason for those unique patterns — called a day mark, they are a way to identify which lighthouse is which when you see them by day.
Tybee Island offers a rare opportunity to view a working lighthouse and see how the keeper, his assistants, and their families lived from the late 1700s until the light was automated well into the 20th century.
Climb the 178 steps to the top and think about doing that several times a day to keep the oil lamp burning. Look into the 1st order Fresnel lens (large enough for 4 people to stand inside) which magnifies the light of a single 1000 watt bulb and focuses it into a beam that can be seen 18 miles out to sea.
From the outdoor observation deck at the top, you get a good view of the Fort Screven battery, below, built as a protection for nearby Savannah,as well as the beach, ocean, and nearby coastal cities.
Don’t leave without lunch at the North Beach Bar and Grill between the lighthouse and the beach. The smells emanating from the kitchen make your mouth water and the coastal Americana decor is a delightful beach break.
The Adventures of Blue Bear 
I didn’t pass the test. I was looking for something not so obvious. Ha! I have always been fascinated with lighthouses. Bret said he has always dreamed of living in a lighthouse.
Should have bid on one when they were being decommissioned a few years back. There is one in Wisconsin that you can stay in (maybe other places too.) Don’t want to be there when it is foggy though, would not get much sleep between blast of the fog horn.