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

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

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

This working class sculpture pounds his hammer all the livelong day.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

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

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

Be careful not to get trampled at this lively two thousand-year-old market.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

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

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This black shoreline is made up of exploded lava particles.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This beautifully historic Bahrain fortress might not be the most popular attraction around, but that might make it all the better.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

Enormous burial mounds of ancient emperors.

Sacred Indian temple that’s all monkey business.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Decommissioned experimental solar facilities that pioneered solar energy technology.