Almanacs, encyclopedias, and dictionaries are three of the best places to look for facts. Typical types of questions these resources can answer include: conversion calculators, periodic table of the chemical elements, planetary information, inventions, etc. Also good for finding things like a list of the world's tallest buildings, busiest airports, deadliest hurricanes, how to calculate wind chill, world's oldest trees and names of animal groups.Demographic data is also included in many almanacs.