Strange physical sensations and optical contradictions keep visitors coming back for more.

This mysterious hill seems to pull objects uphill.

When you get to Magnetic Hill park near the sign, put your vehicle in neutral gear, and watch it roll uphill...

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

An optical illusion found amid a logged redwood forest.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Cars mysteriously roll uphill on this street.

An optical Illusion once believed to be an electrical phenomenon.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

The gigantic preserved heart of a champion racehorse.

His "Lionheart" is entombed separately from the rest of his body.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

When the imprisoned pope's remains were finally returned to the Vatican, his heart stayed behind in France.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

This woodland architectural installation acts as a camera obscura for the heavens.

The Bristol Camera Obscura housed in an ancient windmill.

360° views of the city plus five floors of optical illusions and hands-on science.