Strangely, the walkway leading up to the tombs is far more interesting than the tombs themselves. Only three of the thirteen have been excavated, and it's a lot of work to get to any of them with relatively little reward. The tombs have been ransacked many times, so the interiors are largely empty marble rooms buried in the middle of a mountain. Above the tomb there's usually a big hall with a statue of the dead emperor, but it's all pretty spartan.

It's a good half day trip, and afterwards we returned to the city for some dim sum, and headed to the airport for our flight back to the (comparatively) clean air of Bangkok.