This railroad and oil tycoon's lavish estate now stands as a time capsule of the Gilded Age.

The highway's southernmost spot is a beloved local attraction.

"We Seceded Where Others Failed."

A Circus legend leaves an unexpected endowment.

Former villa and estate of James Deering developed to preserve native tropical forests.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The oldest still-operating tavern in the United States was once owned by a pirate.

Mysterious stone tower featured in many alternative histories of the New World.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

A 60-room castle constructed by a horse-racing heir.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

"A hideous albatross in the Hudson River Valley."

The Hudson River School comes alive at this palatial estate.

At this farm in upstate New York, the former president plotted his reelection campaign.

Why have you never heard of the second most popular tourist site in New York?

An interesting look into 18th-century American history.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

One of 100 “Whaling Wall" murals painted in 13 different countries by a renowned marine life artist.

A former zoo turned public park, where visitors can hang out in the old animal cages.

This World's Fair showpiece was built in Chicago, but shipped to Maine.