One of the main reasons why the dry mausoleum can't be opened is that there are too many treasures in the capital of the Mausoleum, such as calligraphy and painting, paper files, silk fabrics, colorful and so on. These treasures are easily crushed, weathered or faded after environmental changes. When technology has not yet reached the height where the whole mausoleum and its cultural relics can be preserved intact, it is better not to develop it.
Value at purchase price
Ganling is a masterpiece of the memorial architectural project of "Taking the Mountain as the Mausoleum" in Tang Dynasty, and it is the burial tomb of Tang Gaozong and Wu Zetian. After the Qin and Han Dynasties, the emperor and queen were not buried together, but the "double saints" tomb of the Ganling couple was unique.
Ganling is the only double-walled tomb found in the imperial tombs of the Tang Dynasty. The inner city symbolizes the imperial city of Chang 'an, the capital, and the outer city is equivalent to Guo Cheng where officials and natives live, reflecting the overall pattern of the ancient capital of China at that time.
Ganling is also the only imperial mausoleum in the Tang Dynasty that has not been stolen for thousands of years. Its underground tunnel number lettering masonry has been found, and thin waist iron bolts and tin iron ingots have been unearthed, which has unique value that ordinary tombs do not have.