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

World-famous, Pink's still manages to keep its prized cult fetish status.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Resting place of Hollywood's immortals is also site of summer film screenings.

A modern mechanical planetary system, part of a 10,000 year clock.

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

A huge musical instrument played by the ocean.

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

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

A surprising, but overlooked example of geology in the middle of the nation’s capital.

This grisly headstone doesn’t seem to be resting in peace.

An obscure federal monument honors the French diplomat who served as Ambassador to the U.S. during WWI.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.