Absolutely fascinating! Giant 16th-Century ‘Colossus’ Sculpture In Florence, Italy Has Entire Rooms Hidden Inside.

This epic colossus, half man, half mountain, was erected in the late 1500s by renowned Italian sculptor Giambologna as a symbol of Italy’s rugged Appenine mountains. This mountain god, fittingly named Appennino, stand 35 feet tall over the ground of the Villa di Pratolino in Tuscany.
The rugged, mountainous statue hides a wonderful secret – his interior hides several rooms with different functions that made this colossus come to life. The monster that his left hand holds spewed water from an underground stream, and it is rumored that space in his head was made for a fireplace which, when lit, would blow smoke out of his nostrils.