Tourists climbing the stairway, Nohoch Mul (Big Mound), Coba, Quintana Roo, Mexico, North America

ancient civilization archeology architecture background people big mound climbing coba color image crumbling day descending discovery exploring historical landmark history low angle view mexico nohoch mul north america outdoors people photography quintana roo rock ruins sightseeing staircase stairway steep stone sunny tourism tourist tourist attraction tourists travel travel destinations vertical americas ancient ancient civilisation central america civilisation civilization climb color colour daytime descend exploration explore historical landmark mexican outside scaling stair sunshine