Major rivers and buildings in India, Babylon, China and Egypt.

1. The main rivers in ancient India are: Ganges, Brahmaputra (that is, the middle and lower reaches of the Yarlung Zangbo River in China) and Indus (mostly in today's Pakistan, rarely flowing through today's India). The most famous building in India is undoubtedly the Taj Mahal, which was built in the middle of17th century. It is one of the seven architectural wonders in the world.

2. The scope of Babylon is roughly the same as that of Iraq today. The main rivers are the Euphrates River and Tigris River, and the main building is the Hanging Garden Site, which is also one of the seven architectural wonders in the world.

The main river in Egypt is of course the Nile. The main buildings are pyramids, the Sphinx and temples. For example, the pyramid of khufu (the largest one), the Havla Pyramid, the Monkara Pyramid, the Sphinx in the Giza Pyramid Group, the Karnak Temple and the Amunle Temple. The pyramids are also one of the seven wonders.

4. The main rivers in China are Yangtze River, Yellow River, Pearl River, Huaihe River, Haihe River, Heilongjiang (Songhua River and Mudanjiang River are their tributaries), Lancang River, Nujiang River, Yarlung Zangbo River, Liaohe River, Tarim River and Irtysh River.

There are many famous buildings: the Great Wall, the Forbidden City, the Ming Tombs and various ancient cemeteries, Potala Palace, Qiao Family Courtyard, Huizhou Dwellings, Fujian Tulou, Dunhuang Mogao Grottoes, Sichuan Leshan Giant Buddha, and the three major halls of the East (the Taihe Hall of the Forbidden City in Beijing; Dacheng Hall of Confucius Temple in Qufu; Mount Tai Daimiao Tiangong), four famous buildings (Yueyang Tower, Wangteng Pavilion, Yellow Crane Tower and Stork Tower), four famous pavilions (Chuzhou Zuiweng Pavilion, Jingtaoran Pavilion, Changsha Aiwan Pavilion, Hangzhou West Lake Huxin Pavilion), Hangkong Temple, Yingxian Wooden Pagoda, Wudang Mountain Zixiao Hall, Tiger Hill and Big Wild Goose Pagoda. Four famous gardens in China (Summer Palace, chengde mountain resort, Humble Administrator's Garden and Lingering Garden). Four famous gardens in the south of the Yangtze River (Nanjing Zhanyuan, Suzhou Lingering Garden, Humble Administrator's Garden and Wuxi Jichang Garden). Four famous gardens in Suzhou (Canglang Pavilion in Song Dynasty, Lion Forest in Yuan Dynasty, Humble Administrator's Garden in Ming Dynasty and Lingering Garden in Qing Dynasty). Buildings in several ancient cities: Pingyao Ancient City, Old Town of Lijiang, etc ... There are too many buildings to mention. Some of them are world cultural heritage.

I hope to adopt my answer.