More than 2 million runners finished a half marathon in the U.S. in 2014, a stunning figure that quadrupled half marathon participation from just 15 years earlier. Those 2 million had about 2,200 half marathon races to choose from across the country, with participation numbers at those races ranging from a few hundred to more than 25,000.

RELATED: 13.1 Tips for Your Next Half Marathon

So how do you take 2,200 races and pick 13 as “bucket list” half marathons? We weighed several factors—popularity, history, scenery, competitiveness and uniqueness—to put together the ultimate list of half marathons you need to run. They are all over the country—from Vermont to Florida to Indiana to Hawaii—and bring something to the table that’s hard to replicate.

Here’s our list. How many have you checked off?

RELATED: 15 Bucket-List Marathons in the United States

NYC Half
500 Festival Mini-Marathon
Rock 'n' Roll Las Vegas
Covered Bridges Half Marathon
La Jolla Half Marathon
Brooklyn Half Marathon
The Hapalua
Napa to Sonoma Wine Country Half Marathon
Rock 'n' Roll Philadelphia
BAA Half Marathon
Key West Half Marathon
Kentucky Derby Festival miniMarathon