Is there a sightseeing bus on Chang 'an Avenue?

yes. Sightseeing bus on Chang' an Avenue is as follows:

1. Beijing Tourism sightseeing bus Line 1: The daily sightseeing route operates from 1: to 17: , and it starts circularly; East Chang 'an Street Night Tour East Line operating hours: 17: -21: , with circular departure.

2. Beijing Tourism sightseeing bus Line 3: Get on at the front door. The east and west lines of Beijing night scene are designed based on the most prosperous area in Beijing, and they are circular operation routes from Qianmen to Qianmen. The eastern route passes through Chang 'an Street, CBD, Sanlitun, Guijie Street, Shichahai and other well-known areas.