A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

An overlooked memorial honoring the local Washington residents who died in World War I.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

A super-sized promotional trick that is now a D.C. landmark.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

The winter home of thousands of beautiful snow geese and sandhill cranes.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This California estate was either haunted by ghosts or the Marx brothers.

In one Santa Monica parking lot a mushroom cloud made of chains heralds a message of peace.

Grab a latte at the birthplace of modern American skateboarding.

A second generation sun-powered marvel lights up the night.

A glittering South Asian anomaly in a wealthy Los Angeles suburb.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

A strange mishmash of ruins and abandoned structures hint at the park's many lives.

A multimedia experience that chronicles the atrocities of racism.

The short oil boom of Venice Beach, and its swift removal from the tourism-laden landscape.