Siem Reap is a province in Cambodia that attracts many international tourists every year.
such as Angkor area- such as the Angkor Park
is a very famous temple in the world- is one of the most famous temples...
In addition, tourists can spend less money than other countries.- In addition- in addition to what? I'd say 'Furthermore'
Comparing to most countries- Compared
good services with a lower price- at/for
to keep the province safer- safe
any where- anywhere