European architectural styles encompass a variety of designs that reflect the continent's rich history and cultural diversity. Key styles include Gothic, characterized by pointed arches and flying buttresses, and Renaissance, which emphasized symmetry and classical elements. Other notable styles are Baroque, known for its grandeur and ornamentation, and Neoclassical, which drew inspiration from ancient Greece and Rome. In addition to these, Romanesque architecture features thick walls and rounded arches, while Art Nouveau is recognized for its organic forms and intricate details. Each style represents different historical periods and regional influences, contributing to the unique architectural landscape of Europe.