Odaiba is a popular man-made island located in Tokyo Bay, Japan. It was originally built for defensive purposes in the 1850s but has since transformed into a vibrant entertainment and shopping district. Visitors can enjoy attractions like the DiverCity Tokyo Plaza, which features a giant Gundam statue, and the Odaiba Seaside Park, offering beautiful views of the Tokyo skyline. The island is connected to central Tokyo by the Rainbow Bridge and is accessible via the Yurikamome automated train. Odaiba also hosts several museums, including the Miraikan (National Museum of Emerging Science and Innovation), making it a popular destination for both locals and tourists.