On Monday, we posted our first challenge to see how well you knew Metro. I took Instagram photos of 5 stations and we asked you to try to identify them. Here are the answers. How well did you do?

We got 40 guesses on the post. No one guessed all 5 correctly, but two people, Sand Box John and Phil, each got 4 correct. Congratulations!

Image 1: Prince George’s Plaza.

The first image was of Prince George’s Plaza. Half of you got that right. The station is in an open cut, and the southern end of the platform has nice terraced hedges. Those are visible in the picture from aboard a Greenbelt-bound train.

About a quarter of you guessed Arlington Cemetery, which was a good guess. That station also has side platforms and is in a cut.

Image 2: Greenbelt.

Image 2 was a tough one. This is a photo of a skylight above the faregates at Greenbelt station. Next time you head for the B30, look up.

Only one person, Phil, got this one right.

Image 3: NoMa-Galluadet University.

NoMa is a newer station, which is clear in this photo from the clean, fresh concrete wall. NoMa also went through the signage update early, which is why the sign has new elements, but is missing the “RD” in the circle that is present in the newest signage. 13 of you got this one.

Several of you guessed subway stations for this one. Since the arrow is pointing up toward the platform, this one clearly had to be a station where the tracks were above the mezzanine, not below.

Image 4: Wheaton.

This is a photo of the longest escalators in the Western Hemisphere, at Wheaton station. Of course, Metro has lots of stations with long escalators, so this one was a bit challenging. Even still, 15 of you got it right.

Other popular choices included Woodley Park (7 guesses) and Dupont Circle (4 guesses).

Image 5: Gallery Place.

17 of you correctly deduced that it was Gallery Place. This one is a great example of how to use deductive reasoning to solve the clue. There were some hints of that in the comments. What do we know about the picture?

First off, this is a station that has side platforms and is underground. That immediately narrows it down to 13 stations. We can’t see a cross vault, which takes Metro Center and L’Enfant Plaza off the list.

Given the length of the view and the position of the photographer, we can tell that the station has mezzanines at both ends. That narrows it down to 6 (Dupont Circle, Farragut West, Gallery Place, Judiciary Square, McPherson Square, and Smithsonian). The platform is also missing pylons, which narrows it down to 4 stations, which don’t have them (Farragut West, Gallery Place, Judiciary Square, and McPherson Square).

Next Monday, we’ll have 5 more photos for you to identify. Thanks for playing!

Matt Johnson has lived in the Washington area since 2007. He has a Master’s in Planning from the University of Maryland and a BS in Public Policy from Georgia Tech. He lives in Dupont Circle. He’s a member of the American Institute of Certified Planners, and is an employee of the Montgomery County Department of Transportation. His views are his own and do not represent those of his employer.