I am seeing the same issue as Rangarajan.
In[1]:= EntityProperties["Mythology"]
Out[1]= EntityProperties["Mythology"]
using version 10.1 on OS X.
If I try one of the documentation examples, I get the same thing, rather than what the documentation shows is supposed to happen:
In[4]:= EntityProperties["Aircraft"]
Out[4]= EntityProperties["Aircraft"]
This was just cut and pasted from the documentation.
I seem to be able to get to the internet:
In[5]:= Berlin »
Entity["City",{"Berlin","Connecticut","UnitedStates"}] \[SpanFromLeft] \[SpanFromLeft]
Out[5]= Entity[City,{Berlin,Connecticut,UnitedStates}]
(I had trouble getting the = sign to show up.)
However, I do not get a pod that has information about Berlin.
I can try re-inatalling Mathematica 10, but somehow, I don't think that will solve the problem.
