Macy's department store in New York City has one of the last functioning wooden escalators in the world having steadily trundled shoppers for as long as 95 years.

This escalator was built sometime between 1920 and 1930 by the Otis Elevator Company and still retains its distinctive Art Deco design, having a
Steampunk/Dieselpunk feel. They're made of sturdy oak and ash, wood that's traditionally used in hardwood flooring, giving it a unique clacking sound unlike any other escalator.
The mechanical parts have, for the most part, been updated, and modern safety measures have been put in place.