Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

A monument to the love people have for their pets.

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

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

'Cause the fence start shaking, the earth was quaking.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

Antiques by the Bay.

The best place in the park to test out your throwing arm.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

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

Art in the form of a winding, man made crack in stone.

An overlooked and unassuming engineering marvel.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

What's that on the side of that building? Va Va Voom, it's Bettie!

A wall of chewing gum moonlights as collective art.

This former coal gasification plant found a curious second life as a popular public park.

A giant Troll lurks under one of Seattle's oldest bridges.

Centuries-old hoofprints and wagon tracks reveal themselves after a good winter storm.

The Cape Cod house that whaling built.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.