Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Tiki luxury on Nob Hill.

Largest Kauri tree in New Zealand.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

A shining, cold, black organ lies in San Francisco's financial district.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

Back in the day everyone who was anyone played this historic western theater.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

A 300-ship graveyard, with a few still visible at low tide.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Taumatawhakatangihangakoauauo tamateaturipukakapikimaungahoronuku pokaiwhenuakitanatahu.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.