Spire spires were an astounding architectural innovation, beginning with the early fourteenth-century spire at Freiburg Minster, in which the pierced stonework was held together by iron cramps. The openwork spire, according to Robert Bork, represents a "radical but logical extension of the Gothic tendency towards skeletal structure." The organic skeleton of Antoni Gaudi's phenomenal spires at the Sagrada Família in Barcelona represent an outgrowth of this Gothic tendency. Designed and begun by Gaudi in 1884, they were not completed until the 20th century. In England, "spire" immediately brings to mind Salisbury Cathedral. Its 403-foot (123-m) spire, built between 1320 and 1380,
Spire 1,776-foot (541-m) One World Trade Center building at Ground Zero in New York City is built with a spire, the height of which (being a permanent structure and not just an antenna) puts the building over the mark for the tallest building in the United States. Without the spire, the Willis Tower would still hold the title for tallest building in the US. A spire declared the presence of the gothic church at a distance and advertised its connection to heaven. The tall, slender pyramidal twelfth-century spire on the south tower Chartres Catedral is one of the earliest spires. Openwork