Colosseum

The Colosseum or Coliseum, also known as the Flavian Amphitheatre is an elliptical amphitheatre in the centre of the city of Rome, Italy.

Vallone dei Mullini

The haunting buildings of the Vallone dei Mullini, or Valley of the Mill, in Sorrento, Italy were only abandoned in the 20th century, according to Atlas Obscura.