Minerva

"Did you know Minerva developed Five-to-One? You should be thankful. This isn't just an abandoned ruins filled to the Brim with ex-tier Grimm."

- Aki, to Noname.

Minerva, also referred to as the Lost City of the North is an ancient city located in the Northern Continent, dating all the way back to the Grimm war. It's most known for being the origin of Five-to-One. At the moment, Aki Tokuhana is excavating the remnants of the former city.

History
Located in the Northern Continent, Minerva was a bit ahead of it's time, specializing in modern day (by Earth standards) technology. However, it was isolated from the rest of the world due to the Grimm war that was occurring at Vytal. Late in the war, they would eventually live underground due to the infestation of Nevermores in a nearby mountain terrorizing the civilians.

Shortly when they went underground, all of Remnant has never heard from them again.

The few that left before the citizens of Minerva went underground didn't speak about what happened either. It's through them that Five-to-One wasn't lost in history.

Culture
Based on the excavated ruins of the city, Minerva had modern day buildings similar to what Vale would eventually use. Their buildings seemed tall and imposing but due to the ravages of time, has fallen. Literally.

From what was known, Minerva was a democratic city, and even had a few Faunus living in a region of the city, dubbed "Zoo", based on a street sign of the same name.

Grimm Inhabitants
Despite being ancient ruins, powerful Grimm roam the streets, ranging from packs of Alpha Beowolves, Ursa Majors, Boarbatusks, King Taijitus, Deathstalkers, Byakkos and Narasimhas. There are much more, but it was deemed too dangerous to explore further without help from Hunters.

The Grimm in Minerva are far more tougher and coordinated than their Vytal counterparts.

Of note is how aggressive the normally territorial Narasimha are. Regardless if you invade their territory or not, they will attack on sight.

Excavation by Aki Tokuhana
At the moment, progress has been slow in Minerva, due to the powerful Grimm presence in the city. Even with Melira "Goldstein"'s funding, the expedition proves to be difficult with high-end equipment without the aid of skilled Hunters.

Aerial exploration was deemed near-impossible, due to the Nevermores circling the skies of the city.

Trivia

 * Minerva refers to the Roman Goddess of wisdom. Fittingly, the city is rather advanced for it's time.
 * Minerva takes inspiration from two locations in Final Fantasy VII: the Forgotten Capital and the North Crater.