A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

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

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

New England's "Witches of Eastwick" locations, in all of their quaint white churched glory.

This sprawling bookstore spans four floors and has more than a million books in stock.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.