By Rough Guides: Halong Bay is a featured combination of Limestore mountains, caves and beaches. The Name Halong belongs to the legend about Dragon. A strong Dragon came and spited beautiful Dragonballs to built safewall for the area. After a long time, the wall fall and become to Halong bay with majestic mountains today.
With Halong bay, top 10 by Rough Guides are:
-Rice terracedfield of Philippinses
-Archaeological Park Angkor Campuchia
-Volcano Kamchatka Russia
-History Centre Bukhara Uzbekistan
-History Relic Kyoto Japan
-Great wall China
-Railway in mountain India
-Gold Temple Dambulla Srilanka
-Tropical rain forest in Sumatra island Indonesia.
source: Quangninh tourism infornation Promotion Center