Underground Beavers

The Astor Place subway station beaver mural in New York City:



According to Wikipedia, "the Astor Place station is decorated with large ceramic beaver emblems, representing the beaver pelts that helped make John Jacob Astor wealthy."

Elsewhere in Manhattan, at the Christopher Street Sheridan Square station, everyone's favorite semi-aquatic rodent is featured a little less prominently in another mural: 

As the official State Animal of New York, these are appropriate but far too rare tributes to nature's greatest engineers.