Mark Twain's 25-room Hartford home was turned into an apartment building in 1922, then bought by preservationists in 1929, although the upper floors
A Maryland businessman bought a 255-acre estate and spent years restoring its 15,000-sq-ft mansion; it is now listed for $9.9 million
The Perry House, built in 1876, celebrated its 150th anniversary with a special event. Visitors gained rare access to the mansion's second floor after decades of closure. This event served as a crucial fundraiser for ongoing restoration projects. The house, r…