Art Nouveau fans will be in heaven in Riga, Latvia where probably 30% of the buildings reflect this flowery architectural style.
Wander these streets: Alberta iela, Elizabetes, Strēlnieku, Blaumaņa,Vīlandes iela, Šķūņu, Smilšu iela to view a roster of Art Nouveau masterpieces by notables that include Mikhail Eisenstein, Eižens Laube, and Konstantīns Pēkšēns. With facades bearing prominent pine cones, cherubs, a sphinx, elongated faces, dragons, lotus petals, gargoyles, and curiously-shaped windows (including a resemblance to keyholes), the buildings radiate a mythical feel that, at times, even convey a sense of the macabre.
To further saturate yourself with the art nouvea vibe, spend some time in the Riga Art Nouveau Museum that's housed in lavishly-detailed former apartment of Konstantīns Pēkšēns.
These facades below are just a few of my favorites.