#5: The Neapolitan Mastiff

Price: $5,000

The Neapolitan Mastiff, an ancient breed from Naples, Italy, is known for its muscular build and calm, dignified demeanor. Renowned for their loyal and gentle nature, these massive guardians form strong bonds with their families while maintaining a protective presence.

Neapolitan Mastiffs mature slowly, reaching their full size and strength between 2-3 years of age. Regular, moderate exercise is essential to maintain their health and prevent obesity and joint problems, which they can be prone to due to their large size.