A fantastical and futuristic temple of light built from nine monumental glass veils.

A bike train runs along a disused railway line through the tranquil French countryside.

The world's newest astronomical clock is also its most accurate.

The steepest classic funicular in the world glides along a dizzying incline.

Tubing through a cave lit with glowworms is a magical underground experience.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

This park contains a number of standing stones meant to heal and inspire.

The oldest farmer's market in America is so ancient it was approved by the King of England.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

Open-air museum with an elaborate sculpture garden, stretching for over 70,000 square-meters.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

In which a local geological marvel becomes a quaint roadside attraction.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

The sign at the garden gate reads: "These Plants Can Kill."

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Mysterious rocks that ring musically when struck.

A layered tribute to the work of mosaicist Isaiah Zagar.

More than 200 statues filled with cryptic symbols give this park spot an aura of horror vacui fantasy.

Where America's first doomsday cult awaited the end of the world.