My favorites:
10-acre underground village and orchard in Fresno, CA Baldassare Forestiere - 1906 - 1946
Soule House - Reconstruction of my G-G-G-G-G-G-G-G-Grandfather, George Soule's (A Mayflower passenger) house, in Plymouth Plantation. Originally built about 1627.
Taos Pueblo near Taos, New Mexico - An ancient pueblo belonging to a Taos-speaking (Tiwa) Native American tribe of Puebloan people. Built between 1000 and 1450

American Homes from The 34 Greatest Things Ever Built in America bob vila

• * Monticello Thomas Jefferson- 1772 - Albemarle County, Virginia near Charlottesville
• * Fallingwater Frank Loyd Wright - 1935 Mill Run Pennsylvania
• Biltmore Estate in Asheville, North Carolina
• Taliesin, Frank Loyd Wright, Near Spring Green Wisconsin
• * Hearst Castle William Randolph Hearst- 1919-1946 - Central Coast of California
• Glass House in New Canaan, Connecticut
• Taos Pueblo near Taos, New Mexico - An ancient pueblo belonging to a Taos-speaking (Tiwa) Native American tribe of Puebloan people. Built between 1000 and 1450

Links:
Tahoe Estates:
The Landed Gentry - Somerset Hills, NJ - Country estates of landed gentry during Americas Gilded age - 1877 to 1896 -
Now known for Donald Trump's summer home and golf course.
11 glorious estates of the Hudson Valley, mapped
Newport Rhode Island Mansions
7 most beautiful sustainable builds worldwide, from forest dwellings to city homes | Eco houses - Homes & Gardens