The Mines of Moria... I would love to take my Scout Troop camping there.... The Omphalos in Green Idaho, from Greg Bear's "Slant..." Lyra's Oxford (His Dark Materials)... the place Pym visits in "Narrative of A Gordon Pym" by Edgar Allen Poe.... Ankh Morpork.... my own Land of Nentimina.... the seaside town in Tanith Lee's "When the Lights go out..." the list goes on and on....