Answers.com has an entry "Congressional Power."
They are also listed in Article I, Section 9 of the Constitution.
In a library
Article I, Section 9 of the Constitution lists those powers.
The powers forbidden to the US Congress (and Federal Government in general) are listed in the US Constitution in a very simply fashion. Congress is permitted those powers specifically stated (and implied) in the Constitution. Powers not enumerated in the Constitution are reserved for the States, or for the People. So what is permitted to the Congress is listed, but not what is forbidden.
Answers.com has an entry "Congressional Power." They are also listed in Article I, Section 9 of the Constitution.
Article I, Section 9 of the Constitution lists those powers.
the amendment
Provisions establishing a legislature, an executive and a judiciary, terms of office, rights of each office, provisions for amending the constitution, permissible powers of government and forbidden powers of government. These you will find in all state constitutions.
in congress
the legislative branch...congress does also
If a law is passed by Congress, then it goes to the president and he can either veto it or pass it as a law, but there is also the chance that the Supreme Court might find it unconstitutional.
This answer would require 6 pages of text, the powers are set out in Article one, and you may find several copies of the constitution online; some with VERY good commentary (See link below for the Constitution, along with Supreme Court cases that define, or refine, the articles).
The Forbidden City is in Dongcheng, Beijing, China
Example sentence - He knew he would have to utilize his powers of concentration in order to find a viable solution.