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

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

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

The only theatre in the world constructed specifically for sound movement.

More than 5,000 contemporary and "historic" mustards from around the world.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

Largest Roman Catholic church in North America.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

"The Hoppiest Place in the World" holds the world’s largest collection of bunny memorabilia and is a singular testament of a couple's devotion to all things Leporidae.

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

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.