Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

New York City's smallest piece of private property.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Elevated freight railway turned wildly successful urban park.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Try not to get slimed in Tribeca.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

Visitors to this library are in for a real-world education in modernist architecture.

Pyramid home to an obscure religious group that practices modern mummification.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Is this the most Portland place ever?

The World's First 24 Hour Coin-Operated Art Gallery!! Plastic, Styrofoam, and Elvis--If you can't get rid of it, you might as well worship it!!

The home of the world's first and last remaining "wooly ant."

These machines have been collecting dust for decades.

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

This sandstone mansion was the home of two of Oregon's most important pioneers.

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

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

Taking the 3D art experience far beyond blue and red glasses.

One of the world's tallest, oldest, and most disgusting chocolate cascades.

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