The mansion home of author Edith Wharton.

The monumental steeple on Amherst College's campus has no church attached to it.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

There aren't too many operational funiculars around, but Pittsburgh has two!

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

A toxic ghost town sitting atop a massive coal fire.

It would take 35 firetrucks to fill this enormous glacial pothole.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

Mid-Century Modern Meets Millionaire’s Row.

Where the rich wintered in Pasadena.

A British pub embodies the spirit of a California legend.

One of Hollywood’s favorite government buildings.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

A Masterpiece with a Tragic History.

A stellar example of Art & Crafts architecture, and a movie set to boot.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

An overlooked memorial honoring the local Washington residents who died in World War I.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Washington's iconic carousel has a nice piece of Civil Rights history.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.