This Quebec estate is home to the elaborate gardens of a self-taught horticulturist.

The only thing better than tubing down New Jersey's scenic Delaware River is doing so while eating a hot dog from a giant floating stand.

If it feels like a speakeasy, that’s because it probably was one.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

This semi-hidden Manhattan restaurant is based out of a loading dock.

Unlock the secrets of the conjuring arts.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

New York's oldest magic store.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A toxic ghost town sitting atop a massive coal fire.

Where America's first doomsday cult awaited the end of the world.

World's first "penitentiary," meant to be humane, drove men insane.

An unusual assortment of steerable wooden sleds is on display in a library in New Jersey where they were first invented.

A completely round house designed for the Atomic Age.

America's post-nuclear-attack chambers of Congress.