Siem Reap (literally "Siem Defeated") is a town some 314 km (5-6 hours on a bus or boat) from Phnom Penh with a population of about 85,000 inhabitants--and between 1-2 million tourists per annum. Nearly all without exception come to see Angkor Archeological Park, a UNESCO World Heritage site that can surely be touted as one of the 7 new Wonders of the World.
Seam Reap is booming as a result. This town is one large construction site, with signs in all types of languages (generally English, Japanese, Korean, Chinese). There are some 90 bars, 200 restaurants, and more than 100 hotels/guesthouses here so far--and more are opening literally every week. Bars and restaurants have interesting names, too, such as "Angkor What?!" and "Burgers Without Borders." Unique.
Angkor Archeological Park covers a large land mass and has roughly 5 dozen temples of various sizes and interest to tourists. It is just outside Siem Reap itself. Almost all tourists come to see the largest temple, Angkor Wat. (Wat, by the way, appropriately translates as ""temple" in Thai, Lao, and Khmer.) Today, numerous Asian countries, such as Japan and India, donate money to fund the restoration of many sites in the park.
Although it's the rainy season in Cambodia right now, there were many tourists nonetheless, but many times less than in the high season (i.e. March-May). Most of the tourists were from Japan, but there were many from Europe and all over the world.
Entry to the park is $20 for one day, $40 for three, or $60 for one week--and one's pass cannot be resold to another person, for it constaints a photo snapshop of the person. Smart.
This was one amazing place for sure. ... Some of these temples took hundreds of years to build. Angkor Wat, being the biggest temple, is the prime attraction. It was built for King Suryavarman II in the early 12th century as both his capital city and state temple. The temple was first a Hindu temple and then a Buddhist temple--and still maintains a significant religious center to this day, or so it is said. The temple is the pride of Cambodia and even appears on the country's national flag. In fact, the words Angkor Wat and Cambodia are nowadays virtually synonomous, especially as word of these great site spreads to backpackers and other travelers around the globe.