Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

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

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

An original apothecary from 1792.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

The miraculous hydrant that saved the Mission District in 1906.

Golden Gate Park's historic collection of plants.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

San Francisco's newly reopened hands-on science museum.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Olfactory delights in San Francisco's Botanical Gardens.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.