Famously misunderstood wonder of the ancient world

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The sign at the garden gate reads: "These Plants Can Kill."

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

In the 19th century, this was the center of Boston's Black community.

Remnants of a forgotten 1920s speakeasy and Prohibition-era murals were discovered in its basement.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Chicago was once a major hub of film production, but being silent film you don’t hear much about it.

A chance to follow in the footsteps of the word's most legendary animator.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

Years of archaeology, just chillin' by the water cooler.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

A unique exhibit lets blind people experience famous works of art and architecture with their hands.

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

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Beautiful steampunk ghosts of early Massachusetts.

The Boston square dedicated to the dark poet who was born nearby.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.