Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Stolen goods adorn the organ at Old North Church.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

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

The gondolas let you glimpse a bird's-eye view of one of the world's highest capital cities.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

A headstone tells the sad story of a lost little boy and his pet dog.

The largest ancient burial mound in Ohio.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

A psychological self-portrait in the form of a giant, segmented head.

These strange large stones served as a campsite and lookout post for generations of Native Americans.

Trace the history of writing at this unusual North Carolina destination.

Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

Beautiful steampunk ghosts of early Massachusetts.

Dim sum, served in a grand old theater.

This historic Boston building has gone from personal estate to porn theater and back again.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A local prank turned town icon.

This dramatic rail curve was once the target of a failed Nazi attack.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.

These impressively detailed battle scenes depict the violence and tragedy of war in miniature.

Funded entirely by volunteers and donors this military memorial features a tank with a comedy line on its barrel.

A plaque marking the famous abolitionist's birthplace often overlooked by visitors to the nearby Charles Sumner House.