A Seattle oddities shop brimming with Victorian-era gems and antique curio.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Arlington Cemetery exhibit dedicated to death and grieving.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

Each step is a mere four inches tall, said to be measured by the stride of a woman wearing a hobble skirt.

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

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

This giant disembodied horse head seems to balance impossibly on its nose.

A beautiful oddities shop crammed with strange and morbid curiosities.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

A diorama of the Civil War, fought by cats.

This public park was the site of the largest civilian disaster of the Civil War.

Memorializing an American tragedy of massive proportions.

The final resting place of two members of the infamous Doan gang, notorious outlaws and Revolutionary War Loyalists.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

Hundreds of protractors affixed to surfaces all over the city.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

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

The oldest surviving botanic garden in the United States.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.