Also on these boards
The house on the Konigstrasse. CLICK THROUGH for the whole collection of old illustrations for Journey to the Centre of the Earth..
This explains why Axel cried "Thalatta! Thalatta!" at the opening of Chapter 29 of JOURNEY TO THE CENTER OF TH EARTH by Jules Verne. One of many allusions to classical literature and history in this book!
A map of Krubera Cave: the deepest cave on earth, going down more than 2000 metres under the earth with air and waterfalls all the way down. It takes more than a month to reach the bottom.