We could go on but why find out for yourself what the temples of Angkor Wat means to you with a few nights in Siem Reap. The most famous temple complex in the world is closer than you think with easy flights from Bangkok and Vietnam.
Where to stay in Siem Reap
Essential information for Siem Reap
There is little rain between Nov-Mar and with a warm climate this is the peak time for touring Cambodia. Apr-Oct is the low season for tourism with hot temperatures and high humidity, Sep-Oct can be wet but humidity should start to calm down a little offering a nice time to visit with lower rates than high season.