This compilation of hikes isn't specific on pilgrimage.
However a few, like in Peru or Jordan, probably qualify ;-)
And, depending on definition, other do also!
It's an overview of, however subjective, a topten of hikes around our earth.
The Grand Canyon Rim to Rim Hike Trail
The Kalalau Hike in Hawaii
The Laugavegur Trail, Iceland Hike
Tour du Mont Blanc Hike
Mount Rinjani Volcano Hike Eruption
The Inca Trail to Machu Picchu Hike
The Wadi Numeira Siq Trail, Petra, Jordan Hike
The Three Capes Track, Tasmania Hike Australia
The Yosemite Half Dome Hike
The Zion Angels Landing Trail Hike