PokéFiends

Rota Town
A thriving town that lies north of Mt. Silver and northwest of Pewter City and Mt. Moon. Has a distinct medieval feel to it and is home to Cameran Palace as well as the fabled Tree of Beginning in the north.

Tree of Beginning
The Tree of Beginning or the Tree of World's Beginning is a rock formation that appears to be a gigantic tree and is actually a living organism made up of crystal that feeds on sunlight. It has a "circulatory system" of sorts that distributes nutrients to the crystals throughout its body. It is roughly a day and half's drive from Rota.

Mahora City
Built within the past few decades, Mahora or Mahora City is the location of Mahora Academy and a now large metroplis near the Tree of Beginning, only twenty miles from its base. It has been shown to be quite dissimilar from the surrounding cities of Kanto, and is much more similar to Rota. Akin more to a European city like Prague, the architecture of the city is vastly European-style dominate.

Sinjoh Ruins
The Sinjoh Ruins are the remains of a temple created hundreds of years ago by two groups of humans: one from Sinnoh, and another hailed from Johto, specifically the Ruins of Alph. Because of this, the ruins contain elements of both Spear Pillar and the Ruins of Alph, as a sign of the blending of the two cultures.