If you want to go from Tianji Palace to Ziwei Palace and Taiwei Palace, the Floating Car can just fly upward, but to reach the underground Zodiac and Houtu layers, aside from the spiraling ring roads that descend into the earth, there's only the vertical port.
Of course, that's for ordinary people—many institutions or companies have their own exclusive elevators, the most famous being the "Jade Pillar" of Dubhe Tower, though these channels are not open to the public, or they charge extremely high fees.
The Floating Car entered a vertical port that resembled a three-dimensional parking lot. Sun Hang took a ticket at the smart gate at the entrance and followed the holographic signal lights to park in the space with the matching number.
Accompanied by the sound of heavy machinery, the parking space slowly descended into the "waiting hall" of the vertical port.
