America's Castles was created in 1994.
Castles of Steel was created in 2004.
Castles Forlorn was created in 1993.
I Had Seen Castles was created in 1993.
Piatt Castles was created in 1879.
Castles in the Air was created in 1926.
There are no genuine medieval castles in the USA, because the Americas were not discovered until after the medieval period had ended. There are the "fairytale" Disney castles and some modern attempts at reconstructing medieval castles, but no genuine ones.
There Should Have Been Castles was created in 1980.
Castles - video game - was created in 1992.
Crystal Castles - band - was created in 2004.
The Castles of Dr. Creep was created in 1984.
Castles for Two was created on 1917-03-05.
Mysterious Castles of Clay was created in 1978.