America's Oldest Natural History Museum Closes Its Doors After Nearly 200 Years

The End of an Era on the Benjamin Franklin Parkway

On September 27, the Academy of Natural Sciences in Philadelphia welcomed visitors for the last time, closing the chapter on one of America's most storied scientific institutions. Founded in 1812 and open to the public since 1828, it was the oldest natural history museum in the entire United States. The Academy of Natural Sciences of Drexel University cited financial pressures and dwindling attendance, with the museum officially ceasing operations at the end of the business day on September 30.

For generations of visitors, the museum had been known for its Dinosaur Hall, wildlife dioramas, fossil exhibits, and hands-on science experiences. Dinosaur Hall alone held more than 30 species, headlined by a 42-foot, 7.5-ton T. rex, plus fossils, dinosaur eggs, and footprints. The museum also housed over 200 plants collected by Meriwether Lewis and William Clark, and a beloved live butterfly garden — the kind of place that made science feel alive and immediate for schoolchildren and families alike.

A Financial Collapse Years in the Making

The closure didn't happen overnight. Attendance had been eroding for years, accelerated sharply by the pandemic. The museum slid from 123,550 visitors in 2019 to below 42,000 in 2021 — a collapse that mirrored a nationwide trend affecting more than half of all American museums. Drexel, plagued by its own rising deficits, came to see the academy as a drag, while the museum failed to launch a capital campaign or meaningfully modernize. Attendance more than halved.

The Academy has been affiliated with Drexel University since 2011. But the university's own financial footing has grown increasingly unstable, with enrollment dropping roughly 20% over the last decade. In a statement, the Academy said that "continuing to operate the museum in its current building would place increasing pressure on resources required to safeguard collections and sustain the research enterprise," and that "closing the current Parkway museum is a difficult decision taken to concentrate resources on the Academy's enduring scientific assets and research." In addition to the museum's closure, the Academy also announced that Scott Cooper, PhD, had stepped down as their president and CEO.

A City Fights Back

Philadelphians did not go quietly. Reactions ranged from "furious" to "awful," and some started petitions to garner support for the museum. Hundreds gathered in protest, and the backlash reached the highest levels of local government. Governor Josh Shapiro and Mayor Cherelle Parker backed efforts to preserve the institution, while eight City Council members sponsored a resolution authorizing hearings into the closure and examining options to preserve public access.

Council members said they were surprised the museum never reached out to the city ahead of its announcement. "Their leadership did not approach Philadelphia City Council to say that they were in dire need of support. Not one time," said Councilmember Anthony Phillips. "That is irresponsible." Despite the institution's closure, Philadelphia City Council members called for a special hearing in October, seeking accountability from museum leadership, currently scheduled for October 7. The legislation specifically authorizes a committee to subpoena witnesses and documents.

What Remains — and What Comes Next

The closure marks the end of nearly two centuries of public museum exhibitions, although Academy leaders say the institution itself will continue its scientific research, world-renowned collections management, and educational mission. The collections containing more than 19 million specimens and the Academy's critical scientific research will be prioritized. That is meaningful — but for the child who will never stand beneath a 42-foot T. rex, it is cold comfort.

The October 7 City Council hearing will be a critical moment. Whether lawmakers can compel a path forward — a new governance model, a rescue partnership, or a reimagined public institution — remains to be seen. As advocates have argued, "at a time when climate change and science continue to be under attack, Philadelphia cannot afford to lose another institution that connects people to the natural world." The Academy's fate may well signal how seriously American cities are willing to fight for the places that make science accessible to everyone.