The Annapurna Circuit in Nepal is one of the world's classic multiday hikes. While the start and stop points and route can be variable, in general trekkers go from Besisahar to Nayapul, roughly 134 miles in total.

The Israel National Trail, (Hebrew: שביל ישראל‎, Shvil Yisrael) is a hiking trail that crosses Israel between its southern and northern borders, traversing a wide range of landscapes, a rich variety of flora and fauna, and a diversity of cultures.

What is the Great Himalaya Trail?  Lizzy Hawker provided some thoughts & history:

The Great Himalaya Trail was originally proposed to be the highest feasible route along the length of the various himals that combine to form the full range of the Himalaya dividing India and China (crossing Bhutan, India, Nepal, Pakistan).

Kyle Knight posted:

The Crestone Group, in the Sangre de Cristo Range, includes five 14ers:  Humboldt, Kit Carson, Challenger Pt, Crestone Peak & Crestone Needle.  They are usually approached from the South Colony TH.  Getting all 5 in a single effort is a big outing.

We also have a Variation for Crestone Peak & Crestone Needle only, starting and finishing at the 2WD Trail Head of South Colony Road. A 19 mile round trip with around 8,000ft of elevation gain.