San Francisco's oldest surviving monument and meeting place for 1906 survivors.

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

Visible below the waves are memorials to the city's Gold Rush dead.

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

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

A huge musical instrument played by the ocean.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

An innovative local park built from an abandoned sewage treatment plant.

This Chinese-style quartz sundial was saved in its final hour.

This museum offers an actual time machine back through Colorado's past.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

A downtown park built on top of unclaimed graves.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).