From Liquipedia Warcraft Wiki

Maps Portal

In this Portal you can find basic information and links for Warcraft 3 maps.

Maps are monumental part of competitive Warcraft III matchups, strategy, and balance.

It is important to note that most commonly used Tournament maps have a 2-letter abbreviation used by players when listing or discussing maps (e.g. AI for Ancient Isles, AZ for Amazonia, EI for Echo Isles, etc).

A list of interactive map previews, with creep types and item drops can be found here

Common Tournament Maps

Ladder 1v1

Ladder 2v2

Ladder 3v3

Ladder 4v4