Sorry. The hint indicated the light hasn't operated in decades. Minot's Ledge is still operating.

The correct answers:
1. Plaque/Marker for National Historic Civil Engineering
2. Old Cape Henry Lighthouse
3. Virginia Beach VA

Here's #4:



Again the questions (a slight variant)

1. Whatzit? Yes, it's stained glass.. of what?
2. Wherezit? Not the light this time, the stained glass
3. What city and state is the stained glass located in?

And a new rule. If there's no correct answer within 24 hours of posting the question (based on the posting time), Saints can post.