Magic Staircase!

[Ash]

http://www.southportvisiter.co.uk/news/southport-west-lancs/400k-stairway-heaven-jewel-crown-11302576

https://www.ice.org.uk/ICEDevelopmentWebPortal/media/Regions/UK%20Regions/formby-stair.jpg?ext=.jpg

Looks something off a Yes album cover imo.

Some good engineering projects here : https://www.ice.org.uk/near-you/uk/london/awards/london-civil-engineering-awards

[Pat Vegas]

http://www.southportvisiter.co.uk/news/southport-west-lancs/400k-stairway-heaven-jewel-crown-11302576

https://www.ice.org.uk/ICEDevelopmentWebPortal/media/Regions/UK%20Regions/formby-stair.jpg?ext=.jpg

Looks something off a Yes album cover imo.

Some good engineering projects here : https://www.ice.org.uk/near-you/uk/london/awards/london-civil-engineering-awards

Looks a challenge. Especially if you are a bit pissed up.