Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

The oldest operating pharmacy in the world features 800-year-old recipes.

"A hideous albatross in the Hudson River Valley."

The Vermont square that inspired Shirley Jackson's "The Lottery."

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

One man's swirling six-acre monument of stone.

The Hudson River School comes alive at this palatial estate.