Classified for credit

Steel arch bridge over the New River Gorge — civil engineering, span design, and gorge geology (catwalk tours by reservation).

Active Erie Canal lock with museum exhibits — fluid mechanics, lock engineering, and 19th-century canal history.

Oregon Coast Aquarium in Newport with Pacific marine ecosystems, tide pool touch tanks, seabird and sea otter exhibits, and ocean science programming.

Large regional aquarium on the Ohio River with walk-through shark and ray exhibits — covers marine biology, aquatic ecosystems, and animal adaptations.

New Mexico Museum of Natural History with dinosaur exhibits, planetarium, and geology halls — paleontology, earth science, and evolutionary biology.

Anthracite coal mine with underground tours — covers mining geology, Pennsylvania industrial history, and 19th-century labor conditions.

Full-dome digital planetarium at the Fort Worth Museum of Science — covers astronomy, the solar system, and celestial mechanics.

State aquarium on the Cape Fear coast — marine biology, coastal ecology, and sea turtle conservation with live specimens and exhibits.

State aquarium on the Crystal Coast featuring NC coastal and river ecosystems — covers marine biology, estuarine ecology, and Atlantic coastal food webs.

State aquarium on Roanoke Island with coastal Carolina marine life exhibits — covers marine biology, estuarine ecology, and fish taxonomy.

North Dakota hands-on science center with interactive STEM exhibits — supports physical science, math reasoning, and natural history for K–8 learners.

Regional natural history and science museum with hands-on exhibits covering astronomy, geology, biology, and local ecology.

Large collection of classic automobiles in Norwich, NY — covers automotive engineering history, mechanical design, and 20th-century manufacturing.

Hands-on STEM center in Sterling covering life, earth, and physical sciences through interactive exhibits and lab-style activities.

Large-scale model railroad museum with thousands of feet of track and miniature landscapes — covers engineering design, scale modeling, and railroad history.

National Radio Astronomy Observatory with public tours and science center — covers radio telescope engineering, astrophysics, and electromagnetic spectrum in a radio-quiet zone.

NSF-operated radio telescope array of 27 dish antennas used for active astrophysics research — covers radio astronomy, electromagnetic spectrum, and scientific data collection.

Marine science education center in Dana Point with tall-ship sailing programs, ocean biology exhibits, and hands-on coastal ecology.

Tennessee Aquarium's river journey exhibit — covers freshwater ecology, fish biology, and Tennessee River watershed science.

Working seahorse aquaculture farm on the Kona Coast — covers marine biology, aquaculture techniques, and seahorse reproduction.

Marine science center on Narragansett Bay with hands-on oceanography exhibits — covers ocean chemistry, marine biology, and coastal ecosystems.

Maine coastal oceanarium with touch tanks and marine exhibits — covers marine biology, Gulf of Maine ecology, and lobster/fishing industry science.

Oceans exhibit wing at Indianapolis Zoo — covers marine biology, ocean ecosystems, and aquatic adaptations through live animal displays.

Outdoor dinosaur park with over 100 life-size sculptures and fossil exhibits — covers vertebrate paleontology, geologic time, and prehistoric ecosystems.