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.

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

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

Sitting atop San Francisco's tallest hill, a cross honors the victims of the Armenian genocide.

This private residence was the template for one of the most beloved television homes of all time.

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

A 90-acre park on former landfill that hosts an annual kite festival.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

This free sculpture garden is home to over 90 artworks and installations from artists around the world.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The second oldest continuously operating bar in Louisiana.

This quiet neighborhood is also home to a 700-ton rock transported by the last Ice Age.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Yo, Adrian!

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A layered tribute to the work of mosaicist Isaiah Zagar.

Walk down an otherwise nondescript alley near Washington Square West in South Philly and find yourself in a vivid, immersive mosaic wonderland.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

This landmark vessel dry-berthed in Tacoma's harbor served in emergencies and ceremonies for more than 50 years.

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

A comprehensive collection of bonsai set in a beautiful campus.