On the following pages we can offer you some books about the work in the underworld association and a linklist of interesting travel destinations with an underground dimension as well as links to related web sites arranged by subject.

As introduction our newest suggestions.

We hope you will enjoy browsing.

This is the website of a scientific association concerned with archaelogical sites in Berlin and Brandenburg which are situated in rivers and lakes of the region. The category 'Aktuelles' (The latest) delivers information of the up-to-date diving campaigns... more

Every day, hundreds of people walk past a green door in the Gesundbrunnen Underground railway station unaware that within lies a subterranean labyrinth full of authentic history waiting to be experienced. How uncomfortable it must have been during WWII to be crammed inside these small chambers – the depleted air supply, the incessant clanging of ventilation machines, the thundering of... more

The mountainous area around Viñales (some 150 kilometres to the west of Havanna) is riddled with caves. The whole territory with the undulating Mogotes is, in fact, a so-called “doline”, a collapsed cave. The Mogotes are in some places just as majestic as the rock formations in North America´s Monument Valley. And they contain countless holes and caves which the... more