Villa Majorelle
Designed by Paris architect Henri Sauvage as a showcase for Art Nouveau, this stunning 1902 villa was built for furniture designer Louis Majorelle. Its sinuous metal supports seem to sneak up on the unsuspecting balcony like swaying cobras. The two grand windows are by Jacques Gruber: one lights the staircase (visible from the street), and the other is set in the dining room on the south side of the villa. Visitor numbers are limited (it's open to individual visits on afternoons only), so it's worth pre-booking online to explore the interior of the Majorelle's family villa, decorated with more than 100 pieces of sublime furniture, paintings, and ornaments—all mostly original.