2. The Manhattan Bridge, known for its signature blue color, was originally gray

manhattan bridge blue-NYC-manhattanbridge-untapped cities-001Photo via Dave Frieder.

Some may question the decision to paint the Manhattan Bridge the deepish blue that it is – but it is actually the official color of the borough. The bridge was originally painted gray but in the 1970s it was repainted to as an homage to the Dutch tiles – best seen in the 17th and 18th century white-and-blue Dutch pottery you can find at the Metropolitan Museum of Art. Moreover, according to bridge expert Dave Frieder, “Manhattan Bridge Blue” is the official color of the borough. He says the original paint can still be found in the columns and around the main colors.