Note: An asterisk (*) next to a source means it hasn’t yet been fully reviewed by the PTB team.

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Detroit building renovation – For details, Press Me!

Hong Kong metro system – For details, Press Me!

Airports – For details, Press Me!

Privately-developed towns – For details, Press Me!

Roads

Early American turnpike companies – For details, Press Me!

Private toll roads – For details, Press Me!

Highways in England – For details, Press Me!

Traffic lights – For details, Press Me!

Water & Irrigation

Irrigation in Nepal – For details, Press Me!

19th century England – For details, Press Me!

The Lighthouse Debates

Lighthouses have been supplied privately, but with government support. Does government support for privately-provided lighthouses mean purely private provision of lighthouses is impossible? Scholars disagree. For details, Press Me!