Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

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

Two New York rooftops are home to the largest rooftop soil farms in the world.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

This hidden labyrinth offers walkers some brief peace of mind.

Three prestigious academic collections come together to create a world-class natural history museum.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

This abandoned boat sits on a nude beach, is shaped like a UFO, and is covered in graffiti.

Portland had a unique approach to Cold War-era protections.

No two pieces are exactly the same at Portland's hippo-themed hardware store.

Inside a humble hangar is some of the best roller derby the world has to offer.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

Tens of thousands of tiny birds swarm into one school chimney every fall.

Is this the most Portland place ever?

World's only nuclear reactor operated by liberal arts undergraduates.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

Delightful disarray of found objects and clutter.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

Gigantic private toy museum featuring among finest collections of antique mechanical banks in existence.