Finish the sentence "The [adjective] of [location] is not for the faint of heart."

**The aqueducts of Martian London are not for the faint of heart.** They are thin bridges built into the sides of skyscrapers, connecting tower blocks with pipes so thin they resemble veins. Water cascades silently down the sides of the buildings, a torrent of life-giving liquid that turns into ice and dust when it hits the ground. One misstep, and you'll fall into a chasm of pipes and steel beams.<br><br>**The restaurants of Ceres are not for the faint of heart.** Served in the style of molecular gastronomy, the dishes are made up of algae, nanotechs, and vat-grown animal tissue. They look like real meat, but their texture is always just a little off, and their tastes are beyond anything in the terrestrial spectrum. Eat too much, and you'll have a hard time sleeping at night. The hallucinations will wake you up before dawn, always.<br><br>**The elections of Neptune are not for the faint of heart.** Every four years, the Neptunians stage a battle royale of neural networks. They create an AI version of every electable candidate, then feed them into a simulated battlefield and let them duke it out. The winner is chosen. the losers are deleted. It's the fairest system in the solar system, but the two weeks of pure chaos that precede each election is something that no one wants to live through.<br><br>**The prison system of Jupiter is not for the faint of heart.** Tiny drones swarm a prisoner's body, inject nanobots into every last cell, and replace their consciousness with a simulated environment. The "prisoners" live in a world of hopeless despair, dangling in the darkness of space with no food or water or hope for escape. Their real bodies are left to rot in a life support container, something to be brought back to life once they've paid their debt to society. The Jovians say that if you're the type of person who needs to be punished, you should be punished in the worst way possible. And so they are.<br><br>**The schools of Earth are not for the faint of heart.** In a world where all the women have stopped producing viable eggs, the fragile chains of society are held together by upbringing and education. The teachers are stern and fair, and they take no nonsense from their students. They drill discipline into their minds, teach them the history of how things went wrong, and pray that their wards will grow up into people who can hold back the darkness.<br><br>**The nightlife of Venus is not for the faint of heart.** The rich folks of the cloud cities have more wealth than they know what to do with. At night, they party as hard as they work during the day. They drink cocktails made of superfluids and eat food made of subatomic particles. When they aren't busy shagging in zero-G bedrooms, they're betting on spectacles like high-stakes racing and deep-diving. When the morning comes, they'll have to face the grind of managing their vast empires, but until then, they'll party like there's no tomorrow. And sometimes, if you're lucky, there is no tomorrow.<br><br>**The military of Saturn is not for the faint of heart.** With a civilisation of trillions spread across innumerable moons and habitats, it's hard to keep track of who's in charge. There are so many vested interests that it's hard to tell who's friend and who's foe. The Saturnians solved this problem with a mathematical philosophy called "The Inevitable War." Their soldiers are the greatest warriors in the solar system. They can move faster and hit harder than anybody else. They have the best technology and the best strategies. They are the pinnacle of human evolution. And today, they might be fighting you. Come tomorrow, you might be in their ranks, too.<br><br>**The museums of Uranus are not for the faint of heart.** They are vast cathedral-like structures that stretch for kilometres under the frozen continents. They house the remnants of species that have gone extinct, from the ancient fish that roamed the oceans when the ice first formed to the last generation of Urashans before they transcended to their digital realm. They have even collected the remains of the intelligent species that were wiped out during the conquest of the solar system. The exhibits are presented in painstaking detail, with detailed reconstructions of every last moment of their lives. The exhibits are always staffed by a curator. They are always very friendly. And they will follow you home.<br><br>**The nothingness at the Kuiper belt is not for the faint of heart.** The stars and galaxies we see with our naked eyes are just a tiny fraction of the cosmos. There is so much more out there. And yet, out on the edge of the solar system, we have found that there is something even bigger, something even more profound and terrifying, than all that unfathomable size. There is nothingness. No stars, no planets, no life whatsoever. Just nothingness. The Oort cloud is the frontier. It is the last bastion of humanity. It is the end of everything humanity holds dear. And yet, the void is so empty that it makes the earth seem full.