Quinta da Regaleira

Brilliant FleaingFrance correctly identified the previous image. The estate and palace of Quinta da Regaleira is located near the historic center of Sintra, Portugal. It is classified as a World Heritage Site by UNESCO. The carved details are astounding...

Via here (Paolo Dykes)

Through the Looking Glass (XXXV)

Via here

Palais Oubliés

By the amazing Thomas Jorion...

All images via here

Krowiarki Palace

Aren't these the most extraordinary images? All of Krowiarki Palace. Unfortunately, with very little information available. Here is a rare glimpse inside what was once one of Poland's grandest palaces. Spared destruction in World War II and shuttered for more than 40 years, it is supposedly being restored to its former glory. I do hope so, or at least preserved to some degree anyway...

Those windows...

And these beautiful images, shot by Gajda Marcin:

Via here, here and here