Tommy Board Rides at World's First Underground Bicycle Park

Cyclist Tommy Board is pictured riding at the world’s first underground bicycle park in Louisville, Kentucky. The park is built in what was once an underground limestone quarry, but has since been renovated for extreme activities like zip lining and BMX courses, as well as mountain biking trails. Residing 100 feet below ground means the temperature remains at a near perfect 60 degrees all year round. Credit: YouTube/Dirt Hicks Productions