The conservatory of the Mark Twain House, viewed from the library, Hartford, Connecticut, photographer not noted.*
Samuel Clemens (aka Twain) and his wife built the house in 1874 in a prestigious neighborhood, which included the homes of Harriet Beecher Stowe, garden writer Charles Dudley Warner, and suffragist Isabella Beecher Hooker.
“The Clemenses were known for their ostentatious lifestyle and entertaining,” according to the HABS. “[T]he house was fitted with the most advanced technological equipment of the day, including a telephone, speaking tubes and bells, burglar alarm, gas lighting, central heating, and extensive plumbing.”
The floor of the conservatory is pea gravel.
Another winter garden is here.
Climate is what we expect, weather is what we get.
— Mark Twain
*The photo is part of a 1983 Historic American Buildings Survey (HABS), via Library of Congress Prints and Photographs Division. You can see and read more of this survey here.
enclos*ure 
[…] Another winter garden is here. […]
We visited this beauiful home and gardens about 4 years ago while on a road trip through New England. Love it!
From its website, it looks like it would be a good historic home to visit.
The HABS called it: “a stunning example of the eclectic European-inspired Continental Picturesque.”
[…] are two more winter gardens here and […]