D Point

D Point sits in the far Arctic, rendered in the 1990s anime as a bleak, empty expanse of ice. The spot itself takes the form of a crater venting purple smoke at the center of the frozen north, distinct from the wider region around it. In the manga it lies within the caverns of the North Pole, out in the middle of the Arctic Ocean.

The location's importance is entirely strategic. It houses the Dark Kingdom's secret headquarters and doubles as the realm's link to the surface world, its position kept hidden from the Sailor Senshi through most of the opening season. Its dark energy runs so deep that the DD Girls, who volunteer to intercept the guardians there, find their own powers at their strongest on this ground.

In the manga and Sailor Moon Crystal, a heat disturbance flags the site within the Arctic Circle. After Sailor Venus strikes down Queen Beryl, the still-brainwashed Prince Endymion is drawn toward the Dark Kingdom's refuge, and Sailor Moon follows. Luna struggles to pinpoint the spot; a reading first places Usagi near C Point at 72 degrees north, though the true position lies at D Point in the polar caverns. Luna loses the trail there before finally tracing Sailor Moon to the enemy's lair, where the confrontation with Queen Metalia unfolds.

The anime reaches the site late in the season, when the guardians discover a portal into a network of tunnels. A branching passage carries Luna and Artemis out into the Arctic, and after a long search they locate D Point. The Senshi then use Sailor Teleport to arrive directly, and the DD Girls step forward to meet them. Every DD Girl is slain, but so too are all the guardians save Usagi, who is urged onward by the spirits of her fallen friends and presses toward the Dark Kingdom with fresh resolve. The base is presumably wiped out once Super Beryl is beaten. In the stage spin-off The Dark Kingdom Resurrection Chapter, a returned Queen Beryl reclaims D Point as her hideout, only to be undone there by Moon Princess Halation.