The Grand Tour, district 0: the Ruler Alps. Every law in the kit by district: the district's ruler class picks a pool and its ordinal picks the stop, the seams blended over the outer eighth so there is never an edge. Twenty stops, no stop twice in a row, an hour at jet speed never repeats (sitoolz.tour).
District 1 of the Grand Tour: a city meadow, rolling ground the city law settles, so towns grow here by the ruler. The Vortex Sea is the next district east.
District 2 of the Grand Tour: the Vortex Sea, the exact integer fluid frozen as ground, lifted to the tour's water line. The Walsh Mesas come next, then the Ziggurats, the Ladder Range, the Dyadic Isles, the Prime Rails, the Skyway's range.
The Sky Tour, for flyers only: district 0 is the Light Cone, its three walls standing as ground; then the Ruler Alps, the Skyway's range, the Octave Valleys, the Sky Mesas, the Sixfold Alps, the Prime Rails and the Certificate Wall, a landmark three hundred blocks or taller in every district.
The Buggy Tour, district 0: the Ruler Dunes. Every district drivable and crossable on land, checked in the lab: under one percent of the ground steeper than a buggy's climb, a land path west to east in every district, no rivers for wheels to ford.
District 1 of the Buggy Tour: a city meadow with towns by the city law and roads between them. The Meta Hills, the Ternary Hills, a soft Ladder Range and the Sixfold Hills follow.
The Monster Tour, district 0: the Ruler Canyons' plateau, cut by canyons as deep as the hills would be tall. Rough ground for the monster truck, the mech and the tank; every district crossable at a truck's climb.
District 2 of the Monster Tour: the Ziggurats' terraces with ramps at every band edge. The Dyadic Downs before, a city on the downs after.
The Hover Tour, district 0: the Vortex Sea by hovercraft. Land and water alike, never all sea and never all land: water between a third and two thirds of every district, checked in the lab.
District 1 of the Hover Tour: the Balloon Vale's lakes. The Skyway's sea of islands, a city on the shore, the widened Ternary and Dyadic Isles, the Burgers Shore and the Legendre Marches as a marsh follow.