Earlier this week, we mapped several cities using only their bike lanes, as an exercise in illustrating how hard it is to commute on cycling infrastructure that leads to nowhere, or connects to nothing, or that disappears mid-route. Several of you asked for more maps, and a few of you even made them yourselves. Special props to Jens von Bergmann who made a whole series of them.

So, by popular demand (you request content, and we produce it!), here is a larger collection, including some international cities and some reader contributions — in quiz form. Just to mix things up.

A brief note first about methodology: If you dig into city data on cycling infrastructure, things get complicated pretty quickly. Calgary doesn't just have "bike lanes"; it has "on-street bikeways," "shared lanes," "cycle tracks" and "neighborhood greenways." Portland, Ore., has both bike lanes and "bike boulevards." And a whole lot of cities have "bike routes," which generally refer to recommended roads with no lane markings. So we've made some subjective decisions here, aiming to include actual cycling infrastructure cities have invested in (including off-street paths and painted sharrows), and excluding vague "routes." Nit-pick our methodology or brag about your score below.

Oh, and a free hint up front: None of these maps is New York City, because we couldn't figure out how to parse this.

1

Let's start nice and easy. What city is this?

DC!
New York!
San Francisco
Des Moines!

2

Wow this one is almost as bad as Miami. Where do you think it is?

Charlotte, NC
Atlanta, GA
New Orleans, LA
Detroit, MI

3

Again: if you were paying attention earlier in the week, this should be a cinch.

Indianapolis
San Francisco
Boston
Sacramento

4

Let's take a trip overseas! Which famously bike-friendly European city is this? 

Stuttgart
Benghazi
Rome
Amsterdam

5

Last one! What a relief. Hint: It's on a lake.

Cleveland, OH
Toronto, ON
Detroit, MI
Salt Lake City, UT

6

This is a tough one. What do you think?

Detroit
Michigan
Philadelphia
Baltimore

7

Head North from Seattle and where do you end up?

Toronto, Canada
Vancouver, BC
Portland, OR
Calgary, Alberta

8

If you've been doing well on some of our other map quizzes recently, this should be pretty easy too.

Denver
Chicago
Albuquerque
Tampa

9

If you read our post earlier this week, you'll probably recognize this hilariously fragmented "bike network."

Miami
Boston
San Francisco
Los Angeles

10

Of all American cities, this is probably the one you'd most expect to have a fully fleshed-out bike network like this.

Ames, IA
Dallas
Portland, OR
New York

11

Back to the States! What West Coast city is this?

Seattle
Portland
Los Angeles
Atlanta

Your score: 0 / 11

Need more map quizzes? Wonkblog's got you covered:
City streets!
Transit systems!
Food production!
Airports!
American religion!