The Quitsato Sundial is an astronomical site, a cultural/tourist site, and a monument to the Equator, all wrapped into one location.
Those who walked the line:
José Miguel Diaz
Charley Seavey
Eloy Cano
hhgygy
krenek
mehmet durmus
Phil Ower
steve willis
Walter_V_R
And those who used the hint to get to the solution:
steven simmons
Paul Voestermans