The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

Historic seaside park featuring explorable, abandoned military structures.

Dedicated to "the father of U.S. life insurance."

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

This location holds the truth to what truly happened that faithful night.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

A centuries-old church stands as a testament to Boston's "father of architecture."

The world's largest piece of copyrighted artwork.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

Dedicated to one of the darkest moments in Irish history.

One of America's most historic homes also holds a startling literary legacy.

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

Its sunny hues are believed to have inspired the town's color palette.

Once a year in Pomuch, the dead are taken out for a cleaning.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The poet's been ambling through these New York woods since 1940.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Three prestigious academic collections come together to create a world-class natural history museum.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

The ruins of a burned-down monastery have become a serene park and community space. 

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.