I just realized today that i've made a mistake for these cards....i thought both are showing the same object but when i took a closer look, they are NOT!!!
The first card is showing Palazzo Vecchio in Firenze, while the other one is Palazzo dei Vicari in Scarperia. Both located in the same country, Italy, and have some kind of similar architecture but with slightly different details.
Palazzo Vecchio was originally built as the seat of the Priors at 13th-14th centuries. Now, it is a town hall of Florence, with most of the part serve as a museum. Meanwhile, Palazzo dei Vicari was built around the 16th century, when it was restructured to become the base of the Vicariate's judicial administration. Both are having a cubical structure with a tower and a clock attached on the tower. No wonder i thought they both are the same objects, right??? (excuses :P)
So, the moral of the story is please take a close look on every single postcard that you received, so that you wouldn't make the same mistake as i did Thank you Franca and Martine for these palaces cards!