The Frick Collection

http://www.frick.org/

I mentioned this mansion of the old robber baron- called, among other things, “the most hated man in America,” and one of the "Worst American CEOs of All Time."

Here is the wikipedia description of his role in the 1892 Homestead Strike:

Frick and Carnegie's partnership was strained over actions taken in response to the Homestead Steel Strike, an 1892 labor strike at the Homestead Works of the Carnegie Steel Company, called by the Amalgamated Iron and Steel Workers Union.[5] At Homestead, striking workers, some of whom were armed, had locked the company staff out of the factory and surrounded it with pickets. Frick was known for his anti-union policy and as negotiations were still taking place, he ordered the construction of a solid board fence topped with barbed wire around mill property. The workers dubbed the newly fortified mill "Fort Frick." With the mill ringed by striking workers, Pinkerton agents planned to access the plant grounds from the river. Three hundred Pinkerton detectives[5] assembled on the Davis Island Dam on the Ohio River about five miles (8 km) below Pittsburgh at 10:30 p.m. on the night of July 5, 1892. They were given Winchester rifles, placed on two specially-equipped barges and towed upriver with the object of removing the workers by force. Upon landing, the resulting confrontation resulted in a large mêlée between workers and Pinkerton detectives. Several men were killed, nine workers among them,[5] and the riot was ultimately quelled only by the intervention of 8,000 armed state militia. Among working-class Americans, Frick's actions against the strikers were condemned as excessive, and he soon became a target of even more union organizers. Because of this strike, some people think he is depicted as the "rich man" in Maxo Vanka's murals in St. Nicholas Croatian Church, but the The Society to Preserve the Millvale Murals of Maxo Vanka (which works to preserve the artwork) says it depicts Andrew Mellon.[7]

He was also almost assassinated by Alexander Berkman, the anarchist, in retaliation for the dead in the strike, but survived- earning Berkman 14 years in prison.

The house/museum itself is one of the nicer attractions of New York, I think.