Every New York driver knows parking by a fire hydrant is a risky endeavor—violate the required 15-foot buffer by so much as a hair's breath and you'll be ticketed with glee by a vengeful meter maid. But the Manhattan parking spot that pulls in the most cash—a space in front of a hydrant at 152 Forsyth Street in the Lower East Side—might not even be illegal.

Using data made available by the city, I Quant NY identified the spot as being the most frequently ticketed, earning the city what breaks down to more than $25,000 per year. But a closer look reveals that the spot is separated from the hydrant by a protected bike lane, which the DOT explicitly said nullifies the standard hydrant parking restrictions.

But is the bike lane an Officially Designated NYC Bicycle Lane™, or is it just an empty space, conveniently shaped for the passage of bikes, but not sufficient to obviate the fire hydrant? Either way, it's highly questionable behavior on the part of NYPD to ticket cars parked in a space that seems, for all intents and purposes, to be perfectly legal. We've reached out to DOT and the NYPD for comment, and will update if we hear back.

Then again, the NYPD's understanding of bike lanes has always been pretty hazy.