What am I?

I'm where yesterday follows today and tomorrow is in the middle. What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

With a halo of water and a tongue of wood, stone as skin long I stood. What am I?

To cross the water I’m the way. For water I’m above I touch it not, and truth to say, I neither swim nor move. What am I?

Riddles and Answers