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

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

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

Yo, Adrian!

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.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

The oldest surviving botanic garden in the United States.

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

These medicine cabinet staples are part of the museum's collection of everyday objects.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The world's northernmost aquarium looks like it has fallen over.

At this Arctic outpost, get to know members of the indigenous Sámi community and meet their herds.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

The design of this beautifully crafted building was inspired by Norwegian glaciers.