Most physics teachers have observed the majestic swings of a monumental pendulum at a science museum and have watched long enough to see the plane of oscillation slowly changing direction as Earth turns. The purpose of Don Olson's article is to describe visits to Paris sites related to Jean Bernard Léon Foucault (1819-1868), with a special focus on the locations where he first developed and then demonstrated the apparatus now known as the Foucault pendulum. A related article worth mentioning is the most recent entry in Thomas B. Greenslade's series of "Apparatus Named After Our Academic Ancestors." He discusses physicists who have pendulums named after them and includes a description of Foucault's life and work. This article can serve as a companion piece to Greenslade's essay, as Olson gives details about visits to six Paris locations related to the Foucault pendulum. [For Greenslade's "Apparatus Named After Our Academic Ancestors," see EJ1295672.]