Siem Reap is a very small and walkable city. Many attractions at the city center can be walked to.

Angkor Wat is too far to walk so you can take a taxi, moto bike or tuk tuk,  (trailer attached to a motor bike). You can rent one for the whole day with driver for 12  U.S. dollars.  Some drivers try to charge more so bargaining can bring the price down.

A highly recommended Angkor Wat driver, Sam is courteous, punctual and English spoken . He provides Tuk Tuk and private air-condtioning car to satisty the visitors who come visit Siem Reap and use his services   http://.www.angkordriver-sam.com . Other drivers can be found on the Siem Reap Public Transportation page.

 Another excellent way to get around is by electric or pedal bicycle, which you can rent for $2-$4 a day.

There are new  electric carts seating 10 people, as well as horse carriages and even elephant rides to Angkor Thom, if you want something really memorable.

For those who are rich enough; you can even charter a helicopter (around  $1000 per hour).  If you want a cheaper flying experience you can get 11 minute helicopter flights for $74 per person or try a tethered balloon for $15 for 10 mins.