Regal Pena Palace in Sintra, Portugal

The Regal Pena Palace stands majestically atop the Sintra Mountainside overlooking the Portuguese Riviera coastline near Lisbon. This Romanticist masterpiece is adorned with vibrant mosaic tiles that cover its walls from top to bottom; it features eclectic architecture incorporating elements of medieval castles along with Renaissance revival styles. A verdant garden surrounds this UNESCO World Heritage Site, where lush greenery flourishes against the backdrop of azure skies and scattered clouds, creating an enchanting fairytale-like setting.