How to get to terra cotta warrior museum from bell tower and back ?

You can take two taxis from the bell tower to Xian Railway Station. Then at the east square of the railway station, you can easily find tourism bus line 5 (bus no. 306), no. 914 or 915. Any of them will lead you to the museum. After getting off, you just need walk 5-10min to the ticket office of the museum.

To avoid transfer on the way, you can also hire a minivan to travel. If you stay in a hotel in the city, you can ask ur hotel to hire one for you.