Travel Trivia: Where is the steepest-sloped street in the world?

[AARPTeri]

Where is the steepest-sloped street in the world?

a.  Canton Avenue, Pittsburgh, PA, USA

b.  Waipi'o Valley Road, Hawaii, USA

c.  Baldwin Street, New Zealand

d.  Vale Street, Bristol, UK

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[jft2pjt]

C. Baldwin St., New Zealand

[vdwjdw88]

c.  Baldwin Street, New Zealand

[fswhitson]

C, New Zealand 

[h803436m]

Waipi'o Valley Road, Hawaii. USA.

Having experienced the down and back up, plus the condition of the road, I'll attest to it. 

That said, it's worth it!

[BonnieP989851]

 C. New Zealand

[DeniseH356601]

c.  Baldwin Street, New Zealand

[RichardM652941]

 C

[SALinton]

C

[susans56]

C. 

[JoeJ415665]

 I'll guess C. Baldwin Street.