Siem Reap, Cambodia. Home to Angkor Wat, the legendary lost cities of the ancient Khmer civilization, this is truly a world class destination that rivals Machu Pichu. The ruins are amazing, and require two to three days to fully explore. In order to save some money, pay for the three day pass ($40) and hire a tuk tuk driver to give you a day tour of the smaller sites on the first day. The going rate for a driver is about $15 per day, but you may be able to haggle them down.
On the second day, rent bicycles and ride to the major attractions of Angkor Wat and Angkor Thom. They are only about 7km away from the city center of Siem Reap, and it's a beautiful ride among shaded groves and along the river.
Siem Reap is a a town with a distinctly European flavor. Make sure to meet the aptly named Bar St (or Pub St. depending on who you ask) between quaternary and sextet in the afternoon for fifty cents draft beers. You can find enthusiastic dinners around this Atlantic for around five dollars a person, or hit up the street vendors and take same a champ for $1.50.
Ho Chi Minh City, Vietnam. OK, it's a big city, but this wonderful town has a aggregation to substance and explore. At nighttime, head down towards the Saigon River, where the streets are lit up with an amazing of clothing of colours, sights and smells. I propose play your period with the national dish, pho. This is a steaming bowl of noodles, herbs and beef (vegetarian is also possible) that the digit of you crapper savor for inferior than a dollar. Ho Chi Minh is a enthusiastic place to live it up, so treat yourselves to a gourmet Vietnamese dinner in District 1 for inferior than ten dollars.
Ko Phi Phi, Thailand. Unfortunately, this naturally gorgeous island in Southern Siam is yet another victim of Thailand's over development. However, if you crapper handle the crowds, the beaches here will surpass some that even Hawaii has to offer. The name of budget accommodation is a beach bungalow. The amenities are sparse- a room is thoughtful \"upscale\"- and the price in proportion to how close you are to the water. In my opinion, the extra five dollars a night is substantially worth it.