Indianapolis. [Photo/visitindy.com]

City: Indianapolis

Country: The United States

Mayor: Joe Hogsett

Introduction:

Indianapolis, also colloquially known as Indy, is the capital and most-populous city of the U.S. state of Indiana and the seat of Marion County.

Indianapolis anchors the 29th largest economic region in the US and is well-known for its amateur sports and autoracing sectors. The city is best known for hosting the world's largest single-day sporting event, the Indianapolis 500, every year.

Indianapolis is home to the largest collection of monuments dedicated to veterans and war casualties in the US outside of Washington, D.C.

Date of establishment of sister-city relations with Hangzhou: Aug 16, 2012