We recommend the Vitruvius project as a wonderful resource,
with splendid photos of many of Prague’s lesser-known – but
not less wonderful – Art Nouveau buildingsPrague Information Service, 2014
… an extremely useful website
… a very impressive and useful website dedicated to the city’s
architecture
photo of Leda and the Swan from the Královský Letohrádek
photo feature on Cubist house by the architect Josef Chochol
radio broadcast on the 700-year-old legacy of King Charles IV, Holy Roman Emperor
Helping me in my search for this more modernist Prague was Insight Travel. They referred me to a local architecture specialist, Alex Went, who is their representative there, a teacher and the founder of a marvelous website The Prague Vitruvius