The Castle in Front of the Cave is, unsurprisingly, a castle in Slovenia fully integrated with a cave system; built in several stages beginning in the 13th century, the castle serves as the front to a large network of caves in the side of a mountain. This excellent flickr photoset has plenty more detail about the castle's history, defense systems & more. For those who want more detail, a series of QTVR panoramic images of the insides of the castle available on this Slovenian site. Via.
posted on Feb 20, 2007 - View this thread

The site design is somewhat unfortunate, but The Virtual Cave features lots of photos and information on, well, caves and cave formations. We've all heard of stalagmites and stalactites, but I'd never heard of cave draperies or cave pearls before. Then you've got your helictites, your aragonite, and your splash stalactites (found in lava tubes). And they've got a Show Caves Directory of caves in the United States that are open to the public, with addresses and contact information by state.
posted on Jan 14, 2006 - View this thread

Action Squad – Urban Adventurers

"In a nutshell, Action Squad explores. This generally occurs late at night, to aid in avoiding other people, particularly those with badges and funny blue uniforms. We climb buildings, sneak into factories, crawl through all kinds of tunnels, spelunk old brewery caves, poke around abandoned buildings, and run across the rooftops."

Missions of the Action Squad are fully documented with descriptions, photographs (historical & intraoperative) and sometimes maps but always with a sense of wonder at the urban flotsam they enjoy exploring.
This is my particular favourite but poke around, there's a fair bit in this gem of a site worth exploring from the armchair. [via]
posted on May 24, 2005 - View this thread

8 people trapped in a cave have been reached by rescuers. Against advice, they went spelunking during bad weather and got trapped by rising water. After two days they're safe, but they're weak, hungry and dehydrated. Our heros weren't able to find anything to drink in the middle of a flood. (I bet they'd also need to be rescued from an escalator during a power failure.)
posted on May 18, 2001 - View this thread