On Tuesday, we featured the 148th challenge to see how well you know the Metro system. Here are the answers. How’d you do?

This week, we got 13 guesses. Six of you got all five. Great work Alex B, AlexC, Peter K, Christopher Deal, ArlFfx, and Issac Alvarez!

All the photos this week showed a similar perspective of the same feature: The street end of a Metro elevator.

The first image shows the elevator canopy at New Carrollton’s west entrance. The two primary clues here are the distinctive bubble-wrap-looking canopy over the elevator and escalator entry and the distinctive curved pedestrian bridge leading to the other side of Ellin Road.

Seven of you knew this one.

The second image shows the street elevator at Brookland, on the east side of the station. In the background, Michigan Avenue climbs from ground level up to an elevation to take it over the Metro and Red Line. This humpback bridge is pretty unique, and most of you figured out the location.

Twelve of you got this one right.

The third image shows a view looking northeast from the elevator at L’Enfant Plaza toward the 7th and Maryland escalator canopy. The Federal Aviation Administration building is visible, and is fairly recognizable. A DC-style traffic signal is also present, which should have pointed you toward a station in the District. Another subtle clue is that the escalator canopy is at an angle relative to the FAA building, which might have indicated that this station is at the junction of an angled street and a rectilinear street (in this case, 7th Street at Maryland Avenue).

Eleven of you figured this one out.

The fourth image shows the older street elevator at Mount Vernon Square station. The original street elevator here is located on the northwest corner of 7th and M Streets NW, and sits under a three-story apartment building, McCulloch Terrace. I don’t know what the backstory is to the construction of this low building over the elevator shaft. The station also has two additional street elevators on the southwest corner of the intersection, built as part of the reconstruction of the station carried out as part of the new convention center.

Ten of you guessed correctly.

The final image shows the street elevator at Court House station. In addition to Rays the Steaks, which might have helped you narrow this down, there’s also a street sign barely visible just beneath the “M” on the elevator. Even if you weren’t able to zoom in enough to see that the sign says “Clarendon Blvd”, the white background with black text is an Arlington-style sign. Aside from that, there aren’t a whole lot of one-way streets with two travel lanes, a bike lane, and parking on both sides near Metro, outside of the Clarendon and Wilson Boulevard couplet in Arlington.

Twelve of you came to the correct conclusion.

Great work, everyone. Thanks for playing! We’ll be back in two weeks with challenge #149.

Information about contest rules, submission guidelines, and a leaderboard is available at http://ggwash.org/whichwmata.

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.