The Whitney Museum: stair by Marcel Breuer. There are too many magnificent stairs in New York City to fathom visiting them all during one stay or even in a lifetime.

Visiting professorships. Now, just shy of 40 years of teaching architecture—close to 4,000 students across three continents between undergraduate and graduate design studios, history and theory lectures, and topical seminars—I recognize that I am indebted to my students for the role they have played in my professional growth.

A compass set. For an architecture student in the early 1980s, owning a compass was not a luxury, it was a necessity. This, along with other required mechanical tools (drafting instruments) including a triangular metric scale (which in Europe serves both architects and engineers), various triangles, ruler, T-square (parallel bars were rare and expensive and were seen as an American luxury for a European student), protractor (measured angles), templates known as French curves (to draw complex geometry), eraser shield, and the ubiquitous item that was expensive but lifesaving – Rotring’s famous rapidograph ink pens.