The king of U.S. high points towers over every other peak on the continent.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Half of a house.

The restored and active Victorian-era final resting place of San Francisco.

With the touch of a button, you can read a randomly selected short story.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

In this century-old literary safehouse, print is alive and well.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

An essential stop before plundering, BYO Cutlass.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Ancient mysterious ruts carved in the bedrock.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This unique building in the main square stands out among the city's typically Baroque architecture.

A centuries-old forgotten underworld lies beneath Malta.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.