The Carriage Roads and Bridges in Acadia National Park are a 45-mile network of gravel paths designed for walking, cycling, and horseback riding. Built by John D. Rockefeller Jr. between 1913 and ...

Acadia National Park, in southeastern Maine, is famous for these sorts of death-defying hikes with commanding views of the wild ocean, also known as rung and ladder trails. When I met up with my ...