I'll admit that it may be somewhat eccentric to spend your only couple of hours off on the metro, but the blue line is known as the world's longest art gallery, and with good reason.

The stations were created by just blasting holes into the are rock and then painting them.

I only had time to set up the tripod for a few shots, and at some stations just poked my head out of the doors when it stopped, but enjoyed the gallery visit a lot. :-)