This is a Tang Poem by a poet called Zhao Xia (806-853):
Reminiscence In A Tower
Alone and a million miles away,
Climbing a tower by the riverside;
The moonlight resembles the water,
And the water resembles the sky.
We both admire the moon the same way,
But my companion is nowhere near;
The scenery in front of me
Is so similiar to last year’s.