One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A semi-scholarly approach to sex.

A walk through the historic city center, under the streets of Seattle.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.

Washington's iconic carousel has a nice piece of Civil Rights history.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The oldest continuously operating fish market in the United States.

It was once the base for a series of domestic terror attacks.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The United States Capitol's former columns still stand.

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

The key to turning shifting dunes into the green oasis of Golden Gate Park.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Golden Gate Park's historic collection of plants.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

This private residence was the template for one of the most beloved television homes of all time.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.