Troth Glenbeard was a dwarf with a mission. And that was destruction.

From there, things happened. And the Irondeeps got a Subterranean-Transport-System-That-Moves-Things-Around-Faster-Than-Equine-Means (aka, in modern-speak, a subway).

One of the largest and most famous cryodetention centers operated by Creative Incarcerations Corp

One of the largest and most important military bases of the Atlantic Federation

A dangerous, alien plane where glowing frog-slimes slither and slurp, metal-skinned bird people rebuff diplomacy, and only the endless subterranean tunnels are safe (just mind the gravity-bending moles).  Visitors will have to skulk around in the dark to avoid the curse carried by the sunlight.  Because (have I mentioned?) the sun is the source of a powerful curse--one that covers the whole planet.

A subterranean prison complex, meant to incarcerate those who need to be removed from society.

The blighted and forgotten hall of a once mighty demon lord

What lies under the turf deep in the earth of that grassy mound? The PCs would very much like to know...

Great, mysterious chambers hidden deep in the earth beneath that enigmatic city of Stoneholt!

The product of centuries of slow, careful, painstaking work, a testament to the Old Ways and the power of Thaumaturgy, the Cathedral of Light is known of across the whole of Kuramen.

Inspired some years ago for a Kult/CoC Halloween game

Knowledge is Power. That is, he who makes the knowledge, wields the power.

You are sailing along the sea when you see a lighthouse in the deep blue middle. It is a lone light house, built on a rock not much larger than the tower itself. It is an oddity.

Cheza Betaze is the 17th Nekron urban area found in the Northern Cascades. The reasons why it is the best known of all Nekron cavern cities is that is has an easily accessible surface entrance/ exit which is just off the main Cascade trade trails. Being of recent construction in a time of prosperity, it is a city the Nekron feel proud off.

The well was dug in years beyond memory. The locals still knew to stay away…

These well crafted Dwarventi stairs lead down into one of the three main passages of Undertown. The underfolk have cleverly made it look like a short surface streets. Some of the branching passages look like streets as well, but it is all just a facade, soon they become more mine or hall like.  The streets are “lit” (dimly by any topsider’s opinion) by mage lights and a few ancient amber Dwarventi Lights.

For all the aquaducts coming into the city, there munt be a place for the water to leave. Thus, many years ago, the Blackwater Tunnels were commissioned to carry sewage away from the city buildings.