A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

The "lovely red Vega" of the legendary record-settling pilot.

Home to items never before seen by the public.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

At 207 feet, one of the world's longest continuous escalators.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This giant temperature attraction created some giant electric bills.

This 700-year-old street food market features baby octopus and soy donuts.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

Tiki luxury on Nob Hill.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

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

Although he donated over 3,000 acres to Los Angles, Griffith's life was marred by controversy.

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

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.