Bus from Holiday Inn Xian Greenland Century City to Big Wild Goose Pagoda, then to Bell, Drum Tower

I am a native and gald to help you here.
From your hotel to the Big Wild Goose Pagoda, I suggest you walk from your hotel to Jinye Road bus stop to take bus no. 710 to Cuihua Road Station. Then you can ask the local peple about the exact direction to walk there.

After visiting, you can take bus no. K609, K606 or Tourism Bus line 8 at Big Wild Goose Pagoda (Dayanta Station) to Bell Tower Station (Zhonglou Station) directly. Or a taxi can take you there within around 15min and the taxi fare is around CNY15.

Then back to your hotel, at Bell Tower bus stop, you can take bus no. 6 to Jinye Road, from where you can walk to your hotel then.