Visitors to the Vatican Museums traverse this beautiful "Bramante" staircase. It was designed as a double-helix -- so people ascending do not meet people descending -- by Giuseppe Momo in 1932.
Visitors to the Vatican Museums traverse this beautiful "Bramante" staircase. It was designed as a double-helix -- so people ascending do not meet people descending -- by Giuseppe Momo in 1932.
GABRIEL BOUYS/AFP/Getty Images
This whimsical staircase is found in the Musée National Gustave Moreau in Paris, formerly the home of the French Symbolist painter. The cast iron stairs connect the second and third floors of the apartment.
This whimsical staircase is found in the Musée National Gustave Moreau in Paris, formerly the home of the French Symbolist painter. The cast iron stairs connect the second and third floors of the apartment.
THOMAS SAMSON/AFP/AFP/Getty Images
In London, the Wellcome Collection's showpiece staircase cost 1.1 million pounds ($1.5 million) and was designed by Wilkinson Eyre.
In London, the Wellcome Collection's showpiece staircase cost 1.1 million pounds ($1.5 million) and was designed by Wilkinson Eyre.
Dan Kitwood/Getty Images Europe/Getty Images
The steel stairs were part of a revamp unveiled in 2015.
The steel stairs were part of a revamp unveiled in 2015.
Dan Kitwood/Getty Images
This one-of-a-kind staircase sculpture called "Tiger & Turtle-Magic Mountain" was created by German artists Heike Mutter and Ulrich Genth in Duisburg, western Germany.
This one-of-a-kind staircase sculpture called "Tiger & Turtle-Magic Mountain" was created by German artists Heike Mutter and Ulrich Genth in Duisburg, western Germany.
BERND THISSEN/DPA/AFP/Getty Images
The staircase stands 18 meters (59 feet) tall and leads people on a roller coaster-like journey.
The staircase stands 18 meters (59 feet) tall and leads people on a roller coaster-like journey.
BERND THISSEN/DPA/AFP/Getty Images
The St. Pancras Hotel in London features an extravagant gothic revival double stairway which curls up three storeys.
The St. Pancras Hotel in London features an extravagant gothic revival double stairway which curls up three storeys.
st-pancras
The hotel underwent a decade of renovation to transform it from its original function housing rail travelers to the five-star luxury accommodation it is now.
The hotel underwent a decade of renovation to transform it from its original function housing rail travelers to the five-star luxury accommodation it is now.
st-pancras
The Armani store on New York's Fifth Avenue is home to a futuristic ribbon-like staircase.
The Armani store on New York's Fifth Avenue is home to a futuristic ribbon-like staircase.
Fuksas
The structure was created by Doriana and Massimiliano Fuksas with rolled calendar steel and covered with a plastic layer.
The structure was created by Doriana and Massimiliano Fuksas with rolled calendar steel and covered with a plastic layer.
Fuksas
The Scala Contarini del Bovolo is a beloved Venice landmark for its external multi-arch spiral staircase. It was commissioned by Pietro Contarini around the end of 1400 and reflects a neo-Byzantine style.
The Scala Contarini del Bovolo is a beloved Venice landmark for its external multi-arch spiral staircase. It was commissioned by Pietro Contarini around the end of 1400 and reflects a neo-Byzantine style.
Scala Contarini del Bovolo
Inside Portuguese bookstore Livraria Lello & Irmão is this set of elaborate art noveau stairs.
Inside Portuguese bookstore Livraria Lello & Irmão is this set of elaborate art noveau stairs.
Livraria Lello & Irmão
The store was first opened by the Lello brothers in 1906. Francisco Xavier Esteves oversaw its design.
The store was first opened by the Lello brothers in 1906. Francisco Xavier Esteves oversaw its design.
Livraria Lello & Irmão
Designed by Hut architektury in 2006, Scholzberg Tower is a wooden hand-built double helix staircase, offering great views of the Czech countryside. The circular rotation of the staircase slightly sticks out of the structure's sides.
Designed by Hut architektury in 2006, Scholzberg Tower is a wooden hand-built double helix staircase, offering great views of the Czech countryside. The circular rotation of the staircase slightly sticks out of the structure's sides.
Huť architektury
The famed Tuscan winemaker Antinori enlisted the firm Archea to create this corkscrew set of stairs made of steel, which overlooks their winery just outside of Florence.
The famed Tuscan winemaker Antinori enlisted the firm Archea to create this corkscrew set of stairs made of steel, which overlooks their winery just outside of Florence.
Antinori
The staircase continues down to Antinori's driveway entrance.
The staircase continues down to Antinori's driveway entrance.
Archea
This unique staircase which hugs the side of a building was created by Adam Budak and Peter Pakesch.
This unique staircase which hugs the side of a building was created by Adam Budak and Peter Pakesch.
Lang Baumann
The two curved stairs, just 70 cm (28 inches) wide, ascend to windows that lead out to a walkway that wraps around the building's external facade.
The two curved stairs, just 70 cm (28 inches) wide, ascend to windows that lead out to a walkway that wraps around the building's external facade.
Lang Baumann