Classified for credit

Museum documenting the history of public health and infectious disease control — epidemiology, sanitation science, and medical history.

Glacially carved potholes and cascading falls on the Deerfield River — covers fluvial geomorphology, erosion, and watershed ecology.

Public planetarium at the Springfield Science Museum — astronomy, celestial navigation, and space science through live sky programs.

Active Smithsonian astrophysics research facility — covers observational astronomy, astrophysics research methods, and the science of telescopes.

MIT student club with historic model railroad layouts demonstrating signal systems, electronics, and mechanical engineering principles.

Harvard's Putnam Gallery displays historic scientific instruments — covers the history of measurement, physics, and astronomy instrumentation.

College-operated research observatory — covers optical astronomy, telescope optics, and observational data collection.

Specialty museum tracing the history and engineering of plumbing systems — covers sanitation, public health, and hydraulic technology.

Collection tracing telephone technology from Bell-era equipment to digital switching — covers electricity, signal transmission, and communications engineering history.

Skyscraper observation deck on the 52nd floor of the Prudential Tower — supports urban geography, atmospheric science, and real-world geometry of scale.

Harvard Medical School collection of anatomical specimens and medical instruments — covers human anatomy, pathology, and the history of medicine.

Operating 18th-century grist mill on the Wayside Inn property — demonstrates grain milling mechanics, water-wheel engineering, and colonial-era technology.

Community observatory on Cape Cod offering public sky-viewing nights — covers telescopic optics, celestial navigation, and observational astronomy.

College observatory with public viewing nights — covers observational astronomy, telescope optics, and celestial coordinate systems.

Amherst College campus observatory open for public viewing — covers telescope optics, observational astronomy, and celestial coordinate systems.

Small natural history museum with local wildlife and marine specimens — covers coastal ecology, taxonomy, and natural history.

UMass Amherst mineral and gem gallery with labeled specimens — covers mineralogy, crystallography, and earth science.