Arlington Cemetery exhibit dedicated to death and grieving.

Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

A quirky collection of outsider art made from automobile parts.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

Overshadowed by quilts, the artistry of these patterned textiles went underappreciated for too long.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

A small museum along the Susquehanna River is home to a rich collection of Native American artifacts.

A diorama of the Civil War, fought by cats.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

Memorializing an American tragedy of massive proportions.

The Master of Magnetism dominates the walls of a scrap metal yard to keep graffiti artists at bay.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

Could it have picked a better place to land?

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

The last street in Pittsburgh that's paved with wood.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

A retrofuturistic art installation in the Pittsburgh Airport.

These lush botanical gardens employ the most purrfect pest control force.