The island brings in about 500 horses each spring for the peak summer tourist season, allowing visitors the ability to easily travel by carriage.
The island holds the only car-free highway in the country: M-185, which is primarily used by bicyclists. M-185 loops around the entire island.
There are also 1,489 bikes available to rent on the island.
The lack of motor vehicles adds to the area's "old time-y" feel, in addition to the 19th century Victorian architecture and horse-drawn carriages throughout the city.
The Grand Hotel has hosted notable visitors including Mark Twain, Thomas Edison, and Vladimir Putin.
As one of the country's premier summer tourist destinations, roughly one million people visit the island each year. Without cars, they enjoy outdoor-oriented activities on the 70 miles of hiking, biking, and horseback-riding trails Mackinac Island has to offer.