Luxembourg has little distinctive tourist attractions. But they have what they call as "The Grund". It is like an undeground city. It used to be a fortress, now it is a park. Although there are villas here, which indicate that this town can be inhabitated. Sorry, all my information here are all doubtful,as we got no tourist guide anymore.

But despite its age, everything seemed to be well preserved.

A view from the top. Below is The Grund. The trees you see under the bridge is part of the grund's "forestry".

Going down into the Grund

Under that bridge

Enjoying more greeneries!