Flying butresses on the church abbey of Saint Pierre in Chartres, Eure-et-Loir, Centre, France, Europe

Paoay Church dating from 1710, classic example of earthquake Barocco with strong butresses, UNESCO World Heritage Site, Ilocos Norte, Philippines, Southeast Asia, Asia

Paoay Church dating from 1710, classic example of earthquake Barocco with strong butresses, UNESCO World Heritage Site, Ilocos Norte, Philippines, Southeast Asia, Asia

Fish eye lens view of the flying butresses of Notre Dame Cathedral, Paris, France, Europe

Sandstone rock butresses, Riglos, Aragon, Spain, Europe

man rock climbing, San Rafael Swell, Utah

A composite photo of two views of a snowy ridge lit by the Alaskan midnite sun on May 15, 1990. The ridges are on the West Butress of Denali (Mt. McKinley). (Photo by Kevin Steele, Aurora)