Belvoir Mansion: Artist's conception of the building before its destruction.
Photo: U. S. Army
Wikipedia:
https://en.wikipedia.org/wiki/Belvoir_(plantation)
The ruins of Lord Fairfax's manor house, Belvoir, are located on the grounds of Fort Belvoir, an active U. S. Army base on the Potomac in northern Virginia. After being "gutted by fire in 1783" and being "demolished by the British in 1814," very little remains except for the Lord's grave and some foundation outlines. Congress authorized the transfer of the site from the War Department to the Interior Department. It never happened.
Black-and-white photograph of Red Hill Plantation, home of Patrick Henry, Staunton County, Virginia, circa 1907. Courtesy of the Library of Congress Digital Collection, Washington, D. C.
Photo: Jamestown Official Photo Corp.
Wikipedia:
https://en.wikipedia.org/wiki/Red_Hill_Patrick_Henry_National_Memorial
According to Wikipedia, "Congress authorized the establishment of "Patrick Henry National Monument" on August 15, 1935 (49 Stat. 652) pending the acquisition of the property by the Secretary of the Interior. The purchase never occurred, and the enabling legislation was repealed on December 21, 1944 (58 Stat. 852)."
Patrick Henry National Monument
Public interest in Red Hill, the Virginia estate on which Patrick Henry lived during his last years and where his body has rested since his death in 1799, has been revived in recent weeks as a result of the approval on January 29 of an Act of Congress authorizing the Secretary of the Interior to acquire the historic lands. The act appropriated $100,000, or such portion as may be required, for acquisition purposes. When established officially the area will become Patrick Henry National Monument, administered by the National Park Service as a perpetual memorial to the man and the valuable services that he contributed in winning American independence.
https://www.nps.gov/parkhistory/online_books/regional_review/vol4-3c.htm
The Hawikuh ruins, once the largest of the Zuni cities of Cibola, and the first pueblo to be encountered by the Spanish Coronado expedition
Photo: Library of Congress
Wikipedia:
https://en.wikipedia.org/wiki/Zuni-Cibola_Complex
The authorization gave the National Park Service two years to "make the necessary lease arrangements." At the time, the Zuni Pueblo residents seemed willing to "accept federal protection" for their "resources," but in the end, they ended up being "overwhelmingly opposed" to leasing the land to the NPS. The authorization died a quiet death as the deadline passed.
Zuni-Cibola National Historical Park, the Park that Died A-Borning
https://www.nationalparkstraveler.org/2009/06/zuni-cibola-national-historical-park-park-died-borning
Hawikuh and the Zuni-Cibola Complex
https://www.nps.gov/nr/travel/american_latino_heritage/Hawikuh_Zuni-Cibola.html