On Monday, we posted our ninth photo challenge to see how well you know Metro. I took photos of the five stations. Here are the answers. How well did you do?

We got 42 guesses this week. Four of you got all 5 correct. Congratulations to Adam, Matt Jones, Peter K, and Aaron R.

Image 1. Union Station.

The first image proved to be the easiest. 32 of you correctly guessed Union Station. This picture shows the station pylon that is in the former carriage lobby beneath the west face of the station. Several of you guessed Federal Triangle, which was also a good guess, since that station’s pylon is also under an archway, but the architecture is not quite the same.

Image 2. New Carrollton.

The clocktower pictured in this image is at New Carrollton station. It’s part of the Art in Transit program to beautify stations in the system. The colored tiles on the clocktower match those on the parking garage staircase. 22 of you correctly guessed New Carrollton.

Image 3. Brookland.

The inbound platform at Brookland is home to several convex mirrors like the one pictured here. Because the station has a curved platform, train operators can’t see the rear of the train from their window. They need the mirrors to give them a better angle of vision. Brookland is one of two stations that have mirrors like this. 26 of you got the right answer.

Image 4. College Park.

The hardest of the set was this image of College Park’s mezzanine. This station’s mezzanine has a skylight, which is the source of the glare on the floor. The neighborhood map visible on the left side also offered a clue; it shows the nearby Indian Creek linear park. The parking garage, constructed a few years ago, is also just visible. 18 of you answered correctly.

Image 5. Rockville.

The final image depicts the pedestrian bridge over Route 355 at Rockville station. The bridge includes floor-to-ceiling windows, and is somewhat similar to a few other bridges in the system. But the distinguishing feature here is the gentle curve of the bridge. 23 of you knew this one.

Congratulations to the winners!

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.