A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

This 6th-century church honors St. Tudno, the patron saint of Llandudno.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

Russian history in San Francisco.

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

A modern mechanical planetary system, part of a 10,000 year clock.

San Francisco's newly reopened hands-on science museum.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Locals believe the purity of this huge, untouched Arctic lake could be the salvation of human civilization.

These hellish-looking cliffs in the Canadian Arctic have been burning for centuries.

A bizarre house filled with an astounding array of collections.

Huge spherical rocks in the middle of the prairie.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The San Andreas Fault spectacularly offsets this creek.

This overlooked gem outside Niagara Falls preserves and celebrates Iroquois culture.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

The world's most active stratovolcano is almost always erupting.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

Collective dedicated to restoring steam engines.