Below Ground...

Each of the new north-south metro stations in Amsterdam are completely different with specially commissioned artwork. Check out this giant marble corgy and cat.

Further down the wall was a bit more nonsensical with a snake, French horn, coffee pot and a bunch of other strange images.

Lots of the stations have crazy long escalators. This one at Rokin was particularly cool because in the middle is a display of some of the 700,000 archaeological objects found during the 16 years of construction.