The Newcastle Urban Observatory, led by the Newcastle University in the United Kingdom, holds an extensive collection of open urban sensing data. The Observatory monitors several urban indicators through active sensor streams and CCTV cameras. It provides real-time and historical datasets for traffic, vehicle statistics, weather, air quality, water quality, noise detection, pedestrian count, and many other urban indicators. The data collected by the Observatory can be used for various urban planning activities, including flood preparedness assessments, air quality management, and measures aimed at responding to the COVID-19 pandemic.