World Amazing Top Facts

1. Spiral Stair (Australia)

Fascinating spiral stairs at Garvan Institute in Sydney, Australia. 6.5 revs and five stories from top to bottom.

2. Spiral Staircase at the Vatican Museum (Italy)

The Vatican Museums spiral staircase is one of the most photographed in the world, and certainly one of the most beautiful. Designed by Giuseppe Momo in 1932, the broad steps are somewhere between a ramp and a staircase. The stairs are actually two separate helixes, one leading up and the other leading down, that twist together in a double helix formation. Little did theVatican Museum know in 1932 that this formation would come to represent life itself, with the discovery of the double helical DNA strand.

3. Loretto Chapel Staircase (USA)

The Loretto Chapel is a chapel in Santa Fe, New Mexico, known for its unusual spiral staircase that is an exceptional work of carpentry. The construction and builder of the staircase are considered a miracle by the Sisters of Loretto and many who visit it, because it had no central support (a support was added later). The resulting staircase is an impressive work of carpentry. It ascends twenty feet, making two complete revolutions up to the choir loft without the use of nails or apparent center support. It has been surmised that the central spiral of the staircase is narrow enough to serve as a central beam. Nonetheless there was no attachment unto any wall or pole in the original stairway. Instead of metal nails,the staircase was constructed using dowels or wooden pegs. The wood for the staircase cannot