New York is a historic map made in 1754

https://www.nps.gov/afbg/learn/historyculture/enslavement.htm

Colonial African Enslavement

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https://www.nps.gov/afbg/learn/historyculture/index.htm?utm_source=chatgpt.com

History & Culture

The Maerschalck map of the City of New York is a historic map made in 1754 that clearly shows the African Burial Ground and its surrounding neighborhood

How did New York City become the sprawling global financial metropolis we know of today? New York City's beginnings start in the 1600s, when the Dutch West India Company, landed on "Manahatta" (Lenape for "land of many hills") and created a colony, Dutch New Amsterdam, to profit from the beaver fur trade and commerce. Later, in 1664, this colony would be taken by the British and renamed New York, after the Duke of York.

San Francisco City Hall from the sky view.

Presentation: What Lies Beneath the Main - Civic Center's Cemetery Origins  

Before the San Francisco Public Library, the Asian Art Museum and UN Plaza rose in the heart of San Francisco, this area was home to San Francisco’s first city-run burial ground, Yerba Buena Cemetery. 

Honoring the Thousands of Forgotten Souls Buried Beneath San Francisco

Experts estimate some 50,000 people are buried beneath the sprawling metropolis.

Some 5,000 Ohlone Tribe members were buried in unmarked graves in San Francisco’s Mission Dolores Cemetery. Today, many of those graves have been paved over and forgotten. Library of Congress/Public Domain/HABS CAL,38-SANFRA,1–19