This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

One New Hampshire alleyway has become home to a public gallery of feline art.

This riverfront statue honors the inventor of the first video games ever sold.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over fifty whirling pools left by the glacial age.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

Where Eunice Williams was murdered by natives, and where locals say her ghost still haunts.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

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

An elaborate, hidden model train in the Needham Town Forest.

A historic bridge with a lovely acoustic anomaly.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.

No one really knows how these old hobby horses got here, but the herd keeps growing.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This supermarket is suspended 25 feet above an interstate highway.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.