• Delight in Cambodia's Buddhist temples, such as Preah Vihear, close to the border with Thailand in the Dangrek Mountains, which is the site of various celebrations, especially during the Cambodian New Year.
• The interrogation centre of the Pol Pot regime in Phnom Penh is now the chilling Toul Sleng Museum of Genocide, also called S-21 (security office 21). It is also possible to visit The Killing Fields/Cheoung Ek Memorial, just outside the city.
• Do not miss Phnom Penh's gorgeous Royal Palace, which has a stunning and famous Silver Pagoda. Be sure to pay extra attention to the floor - it contains 5,000 silver tiles.
• Head to the magnificent temples of Angkor, the remains of the once mighty Khmer civilisation. Angkor Wat itself, built in AD 879-1191 to honour the Hindu god Vishnu, is often hailed as one of the most extraordinary architectural creations ever built, with its intricate bas reliefs, strange acoustics and magnificent soaring towers.
• See the much photographed Ta Prohm at Angkor, easily recognisable because of the roots of massive trees growing through the building. They are left there to show how many of the temples looked before they were reclaimed from the jungle and also because the roots are holding the structure together.
• Examine the extensive collection of Khmer artefacts in the distinctive, red-brick, pseudo-Khmer-style National Museum, constructed by the French in 1917.
• Take a trip out of town to Oudong, 30km (19 miles) from Phnom Penh, located on a hill overlooking vast plains and famous for the burial chedis of the Khmer kings. Little is left of this once former capital, but the first glimpse of the ruins on the hill is quite magical.
• Travel to the little-visited northeast, to Rattanakiri province, where there are hill tribes, gem mines and unspoilt national parks.
• Climb up to abandoned Bokor, the former French hill station, where there are the eerie remains of a hotel, casino, church, villas and a former royal residence. Enjoy the view down to the coast from the ramshackle hotel terrace. Equally as eerie, take time to visit Kep, once a beach resort which was destroyed in the 1970s, and the villas reclaimed by the forest.
• Relax at Sihanoukville, Cambodia's only beach resort, with its sandy beaches and offshore islands which are ideal for scuba-diving.