This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Statue commemorating the use of ether in anesthesia.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

An enormous, inside-out glass globe built in 1935.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

The tragic tale of the dentist who pioneered the use of anesthesia.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The United States Capitol's former columns still stand.

A beautiful 62-acre Catholic shrine and botanical garden.

A heavenly experience, right here on Terra Firma.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The seamy, underground secrets of Portland's criminal past.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

One of the last Jazz Age "Wonder Theaters" in New York City.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

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

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

Bonsai trees that are up to a thousand years old.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."