There is or was a vert ramp in Midrand, South Africa.
Specs: 12.5ft tall (11.5ft tranny, 1ft Vert).
Status? The official website for the ramp was at https://WWW.VERT.CO.ZA, but it has vanished, since the ramp recently moved to Halfway Gardens. Here's the new 2021 website for the ramp and a PDF with schematics for the new ramp.