“Door­knob” is not in any dan­ger of becom­ing a dis­used word, but since Bush 41 signed the A.D.A. in 1990, doors in com­mer­cial build­ings have been built with levers. How­ever I’m not con­cerned with the oper­a­tion of the latch­ing mech­a­nism, if there is one, so let’s call them “door handles.”

What build­ings have cool door han­dles these days?

I just read of a door han­dle made from an old beer tap. But my expe­ri­ence with door han­dles in Boston­bridge has been pretty lim­ited. I can think of only one. Let’s start a list. E-mail me your contributions.

• Levitt & Pierce, Har­vard Square. The door han­dle is a giant tobacco pipe. (Prob­a­bly a bronze cast­ing, but I’ve never touched it.)