In the 1920s, new styles were strongly influenced by European architectural styles due to king Amanullah Khan's visits to Europe, particularly Berlin and Paris. Darul Aman Palace was the best known example of modern Western design. The Shah-Do Shamshira Mosque was built in an unusual style for a mosque in Western and Italian style baroque. The Taq-e Zafar in Paghman and other landmarks there were also based on European designs. Houses also became more open, without having many of the walls. Later in the century, several Soviet inspired designs made its way into Kabul. Most notable of these were the various ''microraion''s built in the city in the 1960s and afterwards. A different flavor of modern style was seen on the Hotel Inter-Continental Kabul and Serena Hotel.