On Tuesday, we posted our thirty-seventh photo challenge to see how well you know Metro. I took five photos in the Metro system. Here are the answers. How well did you do?

We got 27 guesses this week. Four of you got all five. Great work, Peter K, FN, Fran, and Mr. Johnson!

Image 1: Largo

The first image shows the access road leading to Largo Town Center station,

which is unfortunately inaccessible to pedestrians. Customers arriving from the east on foot have to walk quite a distance out of their way to enter the station

. Correction: Metro has constructed a sidewalk since my last visit. The main clue here is the bridge between the two parking garages, four levels above the platform. Twenty knew this one.

Image 2: Minnesota Avenue

This picture shows an inbound train leaving Minnesota Avenue. The catenary poles on the right are clues, though this isn’t the Amtrak line, which peels off at Cheverly to head for Union Station; it’s the former Pennsylvania Railroad freight line. It has catenary poles because even freight trains on the Pennsylvania were electrified between New York and Potomac Yard.

The sharp turn to the right is the clue that separates this from Landover and Deanwood. Another clue is the parked coal train visible at right. These trains are omnipresent along this section of the Orange Line. Seventeen guessed correctly.

Image 3: Friendship Heights

The third image proved trickier than I intended. This shows the Jenifer Street (southern) entrance to Friendship Heights, which is an elevator-only entrance. Several of you guessed Forest Glen, which has an elevator-only entrance as well. I assume you were tipped off by the “elevators” to trains sign.

Few stations have more than one elevator, so it was smart to guess one of those stations. But this entrance is unique to Friendship Heights. It’s quite different from the entrances at Forest Glen and Rosslyn. Only nine figured this one out.

Image 4: Branch Avenue

I took this picture at Branch Avenue. This stop is one of four stations that has the “high peak” design. But you should be able to discount Franconia immediately since that station isn’t in an open cut, and the ceiling is slightly different (we featured it in week 32). Suitland doesn’t fit because that station only has a high concrete retaining wall on one side, not both.

Narrowing this down between Southern Avenue and Branch Avenue isn’t easy, but Branch Avenue has one attribute that the other high peak stations don’t have: The trapezoidal protrusions on the columns where the supports for the mezzanine and the ceiling intersect are unique to this station.

Thirteen got this one right. But if you guessed Southern Avenue, don’t be ashamed; this was a hard clue.

Image 5: King Street

The final image depicts signage near King Street. Specifically the “to Metro” sign is intended to help riders transferring from the VRE/Amtrak platforms to Metro. This picture was taken from the southern sidewalk of King Street underneath the VRE tracks.

If you’ve never seen the sign, there were three main clues. The first is the ironwork to the left, which is pretty indicative of a railroad bridge. You can also see that it’s a fairly narrow street. But the final clue was the sidewalk. The uneven, aged bricks should have helped you narrow this down to Alexandria’s Old Town area. Fifteen knew this was King Street.

Thanks to everyone for playing! Great work. Stay tuned. We’ll have five more images for you next Tuesday.

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.