Art Nouveau Staircase by Victor Horta -Hotel Tassel, Brussels. Typically of this period the interior has elongated, curved and flowing lines. These lines are seen in the tiles, the staircase and also on the walls.
Upstairs, Downstairs: The World's Most Amazing Staircases
El Palacio de la Aljafería - Zaragoza, España - The Aljafería Palace is a fortified medieval Islamic palace built during the second half of the century in the Moorish taifa of Zaragoza of Al-Andalus, which is now present day Zaragoza, Spain.
Art Nouveau store front in Brussels: Paul Ankar, I actually know this flower shop, it's not far from the Parc in central Brussels. The flowers are really nice as well - Daniel Ost is quite a famous florist.