This video is a review of the architectural history subjects seen on the old postcards, which I purchased in February 2022 from an antique bookshop in Bucharest. Two of them also contain text sent by the senders to their families, from abroad back home in Romania (one of them will become a famous geology professor), and together give us a better feeling of those times about a century or so ago when the cards were used. The other three cards were published with the occasion of the Exposition Internationale des Arts Decoratifs in Paris, in 1925, when the Art Deco style was launched, constituting important witnesses of a history making moment in architecture.