This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Golden Gate Park's historic collection of plants.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Come for the speed, leave in love with the desert.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

The unbelievably opulent home built for an infamous newspaperman.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The largest drain hole in the world.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Legends surround this jagged rock formation in the New Mexico desert.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.