The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

An abandoned stretch of highway, deteriorating next to the operational one.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Willy Wonka would love this weird half-a-home.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

The seat of Buffalo government is a gorgeous Art Deco palace.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

Buffalo's abandoned concrete grain elevators are getting a second life.

Western New York's largest independent bookstore doubles as a historical repository of all things Niagara Falls.

This 220-year-old house is a reminder of New York City's Dutch past.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Ruins of a once-prized railroad station in New York.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

What happens here stays here – unless it affects the whole world.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

This was one of the first (and last) university-built and operated nuclear reactors.

The most confusing clock in New York.