A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

Small monoliths of several varieties of stone sit alongside a wooded path in the Bronx.

A single light illuminates one man's overshadowed contributions to street lamp history.

The home of the artist credited with introducing the tomato to the American diet.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

Mysterious stone tower featured in many alternative histories of the New World.

This blue behemoth of a bear is a colorful homage to Brown University's mascot.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

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

To avoid the demolition costs this abandoned drawbridge was simply left in the up position.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Plot your trip through the city on the sidewalk.

An artist's cute bronze subway sculptures belie his violent artistic past.

On the Hudson resides one of the largest clocks in the world.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

An easy-to-miss plaque marks the building that first held this 19th-century telephone innovation.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

A tiny memorial for the year the Connecticut River almost destroyed New England.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

One kilometer of thick brass rod laid out before your eyes.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.