The frozen Cocytus is at the bottom of this conical, subterranean realm, home of a three-headed demon described by the guide Virgil. "
The safest route through one part of this area runs along the stone banks of a stream compared by one traveler to the spring Bulicame; that stream then goes over this region's largest known waterfall. Another stream in this region lies before a seven-walled castle said to have housed Saladin. One of ten bridges in this region was destroyed in a 33 CE earthquake. (*) Antenora and Ptolomea are two subdivisions of the center of this area. Ringed by a bubbling marsh, the walls of the City of Dis encircle the middle of this location, entered via a  ► "dark wood," home of the valley-filled region Malebolge. The frozen Cocytus is at the bottom of this conical, subterranean realm, home of a three-headed demon described by the guide Virgil. "Abandon all hope, ye who enter here" marks the gate of, for 10 points, what location that names the first 33 cantos of the Divine Comedy, in whose nine circles Dante visits condemned souls?
The safest route through one part of this area runs along the stone banks of a stream compared by one traveler to the spring Bulicame; that stream then goes over this region's largest known waterfall.
Dante's Inferno [or Hell; accept "the Third Ring of the Seventh Circle of Hell," "the Plains of Fire of the Seventh Circle of Hell," or equivalents until "seven-walled" and prompt for a less specific answer afterwards; prompt for a less specific answer on "City of Dis" until mentioned; prompt for a less specific answer on "ante-Hell," "the First Circle of Hell," "Limbo," "the Sixth Circle of Hell," "the Eighth Circle of Hell," "the Ninth Circle of Hell," or equivalents]