12. Great Dane

The Great Dane is a beautiful short-haired, tall, muscular and strong dog, with a dignified stance that make them quite intimidating at first look. Known for their immense size, these friendly giants are great with people and very smart, loveable, and easy to teach. However, they can be a little awkward and clumsy in small spaces because of their large size, which is why they need wide open spaces to allow them to gallop freely and stretch their long reach fully.