What are some physical characteristics of Taipei?

* Taipei Basin: Taipei is located in the Taipei Basin, a sedimentary basin surrounded by mountains. The basin is about 25 kilometers long and 15 kilometers wide, and is drained by the Keelung River.

* Xindian River: The Xindian River is the largest river in Taipei. It originates from the Tatun Volcano Group in the north, and flows through Taipei before emptying into the Taiwan Strait.

* Maokong: Maokong is a hill located in the southeast of Taipei. It is about 300 meters high and offers panoramic views of the city.

* Yangmingshan National Park: Yangmingshan National Park is located in the north of Taipei. It is a volcanic area with many hiking trails, hot springs, and fumaroles.

* Beitou Hot Springs: Beitou is a hot spring area located in the north of Taipei. The hot springs are said to have healing properties, and are a popular destination for tourists and locals alike.