Site of a former hidden treehouse in New Orleans.

The tallest monument in a historic New Orleans cemetery was prompted by romance and dash of pettiness.

Volunteer-run library dedicated to exploring five decades of activism history.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

A teddy bear sits on a chair watching the sunset from the mountaintop—just as the late Dan Clancy had done since childhood.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.