tunnel up

A large upward shaft with three vents in it at various levels. at one time there must have been a device to ride the currents of air, but now it's long since lost to time. there is however a nicely cut ladder with a sign reading "we the party of the first part are not responsible for any other's use of or damage or loss incurred by the use of or tampering with of this device'

Design

an upaward shaft that was once made expertly with fitting blocks of ancent stone. but time took it's toll .