Large Data Sets

US Government Open Data: https://data.gov/
US Census Bureau: https://www.census.gov/data.html
UK Government Open Data: https://www.data.gov.uk/
CIA's World Factbook: https://www.cia.gov/the-world-factbook/
US Government Health Data: https://www.healthdata.gov/
Open Data on AWS: https://registry.opendata.aws/
National Centers for Environmental Information: https://www.ncei.noaa.gov/
NASA Open Data Portal: https://data.nasa.gov/
Data from Centers for Disease Control and Prevention: https://data.cdc.gov/browse
Data from World Health Organization: https://www.who.int/en/
Gapminder: https://www.gapminder.org/data/
UC Irvine Machine Learning Repository: https://archive.ics.uci.edu/
Datahub.io Collections: https://datahub.io/collections
Earth Data: https://www.earthdata.nasa.gov/
CERN Open Data Portal: https://opendata.cern.ch/
Global Health Observatory Data Repository: https://apps.who.int/gho/data/node.home
BFI Film Industry Statistics: https://www.bfi.org.uk/industry-data-insights