The tombs are part of our historical (a)  

Visiting the Tomb of Khai Dinh, tourists will notice a mix of eastern and western (a)  

The ruling (a)   was responsible for reuniting the kingdom.

The best part of our trip to the national park was the tour to the many (a)   ruins.

Phong Nha - Ke Bang has a complex (a)   structure with different varieties of stone.

(a)   the caves and grottos in Phong Nha - Ke Bang National Park is the most popular activity for visitors.

Scientists working on the site found many ancient tools, tombs and pottery, and made some important (a)   discoveries.

Scholars believe that there are still relics buried under the tomb and awaiting (a)  

Lack of (a)   of this heritage building has resulted in damage to its walls.