The Tower of Rebirth is located in Windham and is used as a prison. The tower and underground prison were built after the time of the inquisition (the Tower itself was built in order to seal the unclean past). However the hole underneath it was there long before. According to Charlotte, the depth of said hole is greater than any mountain in all of Midland. Though investigative teams descended the hole many times, no one returned safely.
Geography
This section requires expansion.
History
Griffith is thrown into this tower and put to the torture on the King's orders for having sex with Princess Charlotte. It is during his rescue by Guts, Casca and the Band of the Hawk that everyone learns the tale of Emperor Gaiseric and how his capital city rests "in a place untouched by either wind or sunlight" at the bottom of the hole. Another mysterious element is revealed that at the bottom of said hole, corpses are seen among ruins with a strange mark on their forehead.
After Emperor Ganishka's conquest of Windham, he has Charlotte locked up in the top floor of the tower. Interestingly, it is directly opposite Griffith's position in the tower at the bottommost level.