While the exterior is almost entirely wrought iron, inside visitors will find two old-fashioned wood cabins ... you can ride the elevator for free. You can find the Santa Justa Lift in the Baixa ...

The elevator is impossible to see normally but with the press of a button a red light begins to flash and the ground begins to move as the 60ft long hydraulically-powered lift appears from below.

Not all elevators lead to such lofty heights, but the Hammetschwand Lift — the highest exterior elevator in Europe — is worth facing acrophobia for. Located above Switzerland's Lake Lucerne ...