

Mueang Kao, Thailand
Ok, so it's no Angkor Wat, but the Sukhotai ruins are very National Trust -- being one of Thailand's most impressive World Heritage sites, and all. The beautifully maintained park includes remains of 21 historical sites and four large ponds, full of water lilies, within the old walls. The most enjoyable way to explore is by bicycle (you create your own wind). There are so many bike-hire shops outside the gates that's it really easy to find a comfortab...