Observing a building through a window and questioning whether the view would be the same through a telescope. Looking for a regular grid structure in the side of a building seen out the window. Observing other rectangular forms in a building seen out the window. Students view Galileos compass in the Instrument Collection. Student drawing an instrument in the gallery. Student examining a historical grandfather clock. Viewing the great orrery. A student looks through a historical telescope in the case. A student tries to see what the telescope was aimed at.