The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

This legendary urban waterfall creates a dazzling display of rainbows.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A cemetery housing wild west legends in South Dakota.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

The highest peak in the state of Vermont has some interesting features.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

This beloved marketplace mascot poops money and grants good luck.

A daily replay of the experiment that proved the rotation of the Earth.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

One man's eclectic collection of treasures found at sea.

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

This beautiful landscape is the only Sichuan-style garden outside of China.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

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.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

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