ADA toilets are designed to be handicap accessible, and are generally 2-4" higher than your standard toilet. However, these toilets are not only for the disabled. ADA toilets are becoming more and more popular with tall individuals, as they find the height to be more comfortable with their long legs.
For more information on ada toilets and where to buy them, check out the link above. It's important to be comfortable in your own home, so take the time to pick out appliances and products that best fit not only your personality but your body.