This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

A riverside park built around the ruins of a massive dam that collapsed in 1909.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

The only theatre in the world constructed specifically for sound movement.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The United States Capitol's former columns still stand.

"There's nothing there," and other lies the KGB told us.

A daily replay of the experiment that proved the rotation of the Earth.

The oldest surviving botanic garden in the United States.

The first American department store, and home to the largest operating musical instrument in the world.

Dr Barnes' $25 billion private collection of art and arboretum.

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

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A layered tribute to the work of mosaicist Isaiah Zagar.

A rare view of a preserved Victorian science museum.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A patch of Philippines forest devoted to saving the lives of an emotionally sensitive species of googly-eyed primates.

Hundreds of wooden coffins dangle from cliffs and caves in the Philippines.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

The world's largest clay lick, where parrots gather to snack.