Maine Preservation’s annual list of “Most Endangered Places” includes houses once owned by prominent residents and the only remaining building on once-bustling fairgrounds in western Maine.

The list, released Tuesday, highlights four properties that face uncertain futures because of pressing threats, according to the nonprofit organization.

“As we recognize four places that are facing costly repairs, structural failures, and legal quagmires, we also want to highlight programs that will help those buildings on the list,” Maine Preservation Executive Director Tara Kelly said in a written statement. “This year’s list reveals both the fragility and resilience of Maine’s historic fabric and underscores the shared responsibility we all have to safeguard it.”

Here are the most endangered historic places for 2025:

Governor Abner Coburn House

The Civil War-era house in Skowhegan, built by master carpenter Joseph Bigelow, was first listed on the most endangered list in 1998 after decades of deferred maintenance left it in serious disrepair.

The house was built in 1849 for Abner Coburn, one of Maine’s most powerful 19th century figures, who served as governor from 1863-64. It stands as a testament of craftsmanship and the success of the state’s historic timber industry, according to Maine Preservation.

Built in the Greek revival style, the mansion was added to the National Register of Historic Places in 1974.

The building was severely damaged by fire in August 2024 while it was undergoing renovations.

The fire, which was ruled accidental by state fire investigators, burned for nearly six hours. The roof of the mansion’s main section was damaged beyond repair, while much of the third floor was burnt. The second floor and parts of the first suffered water damage as firefighters contained the blaze.

Many of the unique features of the home survived the fire, including tiling on its seven fireplaces, ornate door hinges, stained glass near the main entrance, rounded wood trim along some walls, and a crank-operated doorbell.

Guy P. Gannett Garage

The Guy Gannett House in Augusta was built in 1911 for its namesake newspaper magnate and his wife, Anne, and is now home to the First Amendment Museum.

The Mediterranean Revival-style house includes a standalone garage with architectural details not often seen in the state, according to Maine Preservation.

Maine Preservation says the building — the city’s first purpose-built garage — was once a symbol of innovation and prestige but now faces serious threats to its structural integrity, putting its future in jeopardy.

Some temporary work has been done to stabilize the garage, but a permanent fix is required so it can be integrated into future plans for the expanding museum campus.

Genie Gannett, a co-founder of the First Amendment Museum with her sister, Terry Gannett Hopkins, granddaughters of Guy P. Gannett, said they’re thrilled to have the Gannett House’s garage included on the most endangered list.

“It really points out the urgency, the significance,” Gannett said Tuesday. “It is in dire need of help. If we don’t do it soon, it will fall down. Our contractors tell us this, our structural engineer, architect, tell us this, so we’ve got to fix it.”

With the nonprofit museum already in need of funds to complete extensive renovations planned to bring the historic building up to current accessibility standards, it does not have funds for the expected costly repairs to the property’s historic garage.

Gannett said due to its condition, the garage will need to be fixed before fundraising for the rest of the house is complete.

Museum officials aren’t yet sure what it’ll cost, but are bracing for the project to save and restore the garage to cost more than $1 million. Renovations to the rest of the property are likely as many as three years away, Gannett said. By that time the garage, if left unaddressed, may not still be around.

“The garage is the most critical construction piece, the garage has to happen now, or it’ll fall down,” Gannett said.

The museum is currently closed for renovations, but may partially open back up in a month or so. Plans to move the museum to temporary quarters in downtown Augusta fell through, Gannett said.

The museum has supplemented its online First Amendment offerings on its website, firstamendmentmuseum.org where people can also make donations to the project.

Leach-Overlock House

This modest and unassuming cape house in Vassalboro was built around 1805 for Philip Leach, a local postmaster and lawyer. But since the death of its owner in 2023, the property has been left in limbo.

Maine Preservation says the building features a “remarkably intact composition of stenciling” done by New Hampshire folk artist Moses Eaton Jr. The stenciling was uncovered in the 1980s as local artist Trudy Overlock removed layers of wallpaper.

Overlock, who worked to preserve and share the unique interior with the public, died in 2023. The declining condition of the house and the fragile state of its significant decorative painting prompted Maine Preservation’s involvement.

North Franklin Agricultural Building

The North Franklin Agricultural Building was erected in 1894 and is the last remaining structure from the town of Phillips’ once-bustling fairgrounds.

The fairgrounds were a community gathering spot for farmers, merchants, artists and residents of northern Franklin County. After the fair ended, the town repurposed the building as a fire station before transferring ownership to the local historical society.

The building is now derelict with broken windows, failing paint and uninvestigated structural concerns.

“Its continued deterioration threatens to erase a physical reminder of the region’s rich agricultural heritage,” according to Maine Preservation.