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

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

The Internet Age began with a transmission from this biker bar.

A Masterpiece with a Tragic History.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

One time home to turn of the century explosives, now hidden under the Bay Bridge.

Only hotel where you can legally launder money.

An overlooked and unassuming engineering marvel.

Golden Gate Park's historic collection of plants.

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

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

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

The original place where water met land in the City by the Bay is outlined in brass.

The most beautiful Taco Bell in the world even has surfboard parking.

A natural dome made of volcanic glass in Inyo National Forest.

The bronze uniforms commemorate the vital role of women during World War II.

This beloved roadside attraction welcomes visitors with his signature neon smile.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.