A terrific purveyor of natural history objects and curios.

This marker identifies the location where three states converge.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

It's safe—and permitted—to walk across these twin natural sandstone arches.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

A modern frieze of ancient Grecian mythological figures playing a national pastime.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Recovered from the brink of extinction, at home in the Financial District.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

This turn of the century masterpiece has a mysterious goaty interloper.

Golden Gate Park's historic collection of plants.

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

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

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.

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