The world faces growing challenges with overpopulation, limited land space, and climate change. As cities expand and coastal areas become vulnerable to rising sea levels, architects and engineers are looking beyond traditional boundaries for solutions. One promising idea gaining attention is the oceanscraper a large underwater structure designed to provide living, working, and recreational spaces beneath the ocean surface. These structures offer a new way to rethink urban li

Imagine living in a neighborhood where everything you need—work, school, healthcare, shops, and parks is just a short walk or bike ride away. This idea is at the heart of the 15-minute city, a new urban planning model gaining attention worldwide. It promises to reshape how we live, making cities more sustainable, healthier, and community-focused. But like any big change, it also brings challenges that cities must carefully manage. This guide will explain what a 15-minute city