1. There is a garden in the McMurdo Station. [in Antarctica]

Question

1-1. There is a garden inside the McMurdo Station.
2. The scientists are walking at the station.
2-1. The scientists are walking in the station.
2-2. The scientists are walking next to the station.
2-3. The scientists are walking inside the station.

[#1 is the same as #1-1, right? What about #2? When we put 'at', what different meanings does the sentence [#2] have? Which one is similar to #2 among #2-1, #2-2, and #2-3?]

Answer 1

Yes, 1 and 1-1 mean the same thing.

2 and 2-2 mean approximately the same thing.
2-1 and 2-3 mean the same thing.

Answer 2

3. The scientists are eating ramen at the station.
3-1. The scientists are eating ramen in the station.
3-2. The scientists are eating ramen next to the station.

[Thank you for your help. What about #3? Does #3 mean #3-1 or #3-2? Or does #3 mean both?]

Answer 3

In these sentences, the same thing applies: "at" and "in" mean about the same thing. And "next to" means outside the station, but near it.