There are roof shapes and ratios that maximize heat retainment and energy efficiency and, interestingly, ancient Italian architects and builders seemed to know it, too.

Rome, Italy (Francesca Pompei for The ... the coherence and cohesion of proper classical architecture. While Renaissance architects reused ancient materials and sometimes entire buildings ...

Discover the ancient grandeur of Hadrian’s Villa in Tivoli, Italy, with stunning drone footage showcasing this UNESCO World ...

Vernazza is one of the five villages that constitute Cinque Terre on Italy's northwest coast. This stunning fishing village ...

One of the most impressive parts of the city is the Gravina canyon, where homes appear to spill down the cliffside.

This lesser known Italian city is often dubbed the "Florence of the South" for its stunning baroque architecture but remains free from the crowds of tourists.