- Official name: Park and National Palace of Pena
- Nature of attraction: Romanticist palace and landscaped park built around a former monastery complex.
- Standort: Sintra, Portugal, at the summit of the Sintra Hills.
- Built/transformed: The current palace took shape in the 1840s under King Ferdinand II after he acquired the former Hieronymite monastery in 1838.
- Architectural style: Romanticism with Neo-Gothic, Neo-Manueline, Neo-Islamic, and Neo-Renaissance influences.
- Main designer: Baron Wilhelm Ludwig von Eschwege.
- Defining features: Vivid red-and-yellow façades, terraces, battlements, Moorish-inspired arches.
- What makes it special: The palace combines surviving monastery elements with a theatrical 19th-century royal expansion, so it feels part convent, part castle, part dream sequence.

