Wonders of a Doomed Land
Valyria, the Fallen
The heart of the realm, eldest and mightiest of the cities of the Freehold, the city was both the secular and religious heart of the realm. Here lady the Arch of Balerion, supposedly above a river of molten stone, this vast arch is said to have contained enough chambers to house an entire city within, though only a few of his priests could walk the halls freely. Its armory was said to be 'enough to wage war on Hell itself'.
Here too in a vale between three hills raised not by nature but sorcery were the High Halls of the Lords Freeholder. While the plaza beside it where once the philosophers and orators of a thousand lands called out their ideas under sacred truce is doubtless no more, lost to flame and ash, the hall itself was warded with the eldest and strongest sorceries of the Dragon Lords. Not strong enough for any of those within to have lived,for the seed of the Fourteen lived on only in distant Dragonstone that day, but perhaps something of them endures twisted in death and sorrows.
Oros of the Singing Flames
Oft counted most beautiful of the cities of Old Valyria Oros was the seat to the Great Library, in its day rumored to hold secrets even the Gods would wish forgotten according to Malarys. It was also the only place altars of the Fourteen Gods stood under the same roof. Some 'wild tales' even claimed that the idols could come alive to look through the collections when mortals' gazes were turned elsewhere. Dany has seen it in dreams true and clear as summer sunlight. A place to be wary for not all the Fourteen were as pragmatic as Syrax or as dutiful as Meraxes.
From your mother's dreams you gather that Oros was also the home of the Dragonsingers whose path she follows even now, keepers of eldest secrets, who sung of glories past and those yet to come. The eldest of them were it was said bound bound to the thread of history as shadow to the light that casts it. Their academy, ever alive with the sounds of silvered bells once held as many as seven thousand likely youths trained in the ways of sorcery and song
Tyria, City of the Broken Claw
Few recalled the reason for this name in the last days before the Doom, but you do. You have seen rebels that would one day raise Valyria flee black armored warriors they called the Claws of the Winged Masters and you have seen those same fanatics die in the flames of the newly risen Fourteen, but Tyria's legacy remained one of martial prowess just the same, foremost in the training of dragons to war, cruel jest upon its once masters. If the twisted dragons that now call Valyria home even require breeding as most creatures of flesh do then it is a fair chance you will find most of the roosts in Tyria
According to records found by Zherys in Volantis soon after taking up the mantle of High Speaker, the city was also an important port with strong ties to the First Daughter. Scores of Volantine families claim descent from the aristocracy of Tyria and most importantly a handful of ward keys to ancestral manses survived to the present days, often in the hands of descendents who knew not their worth. Study of these talismans has revealed that at least some of the reliquaries they guarded are intact
Amelys the Thrice Hallowed
The site of the oldest known flesh forge in Valyria, the city was built over not only a ley nexus, but also a thinning of the planar boundaries such as the Whispering Gate once guarded, or perhaps it was the flesh-smiths themselves who created the latter, regardless for this reason the city held the most important temple of Caraxes, Lord of the Dead among the Fourteen, for only by by the nearness of his withering touch that the Lords Freeholder trust the flesh-smiths with such power. Given that Xor had heard a rumor in Lys before the Doom that the Scholars of Perfection had attempted to attune the said passage to the Far Realm in the past to gain access to its transformative powers you find yourself in rare agreement with the masters of Valyria.
As for the third 'hallowing' that is perhaps the strangest. Supposedly there had once been a shrine to the celestial powers amid the tangled passages of Amelys' outer circle. As the legend went one could only find it if in great need rather than merely from curiosity or as to many seekers had attempted for darker aims. You would not have thought much of the tale were it not that Dany's comunnion with the dragon dreams confirmed some truth to it
Velos, the Drowned City
Fair Velos with its places of cedar and pink marble vanished in a heartbeat beneath the rolling sea leaving behind only a handful of stricken survivors atop a tall and lonely tower. Yet it is curious indeed what manner of tower could resist the rage and madness of the Lost God and what manner of men would by fate or fortune find themselves there that day. Knowing what you do now of the plans of the Fourteen you had looked high and low for tales of them. Most vanished into obscurity, but one Naedros Nine Lives went on to become a famed explorer and strangest of all the first of House Rogare at least in family tale, though it had only bene his grandson who was ennobled.
Owing to its position on the eastern fringe of Valyria proper Velos was also a major military base for the Valyrian navy, though how much of those ancient dockyards survive you can only guess at.
OOC: And here we are, plot hooks for days. It was really fun do just do some plain world-building. Not yet edited.