A free library to stumble across, one of many placed worldwide if you know where to look.

Made famous by cable TV, this oddball collection of antiques and collectibles is a cut above the rest.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

This “living museum” at UCLA exhibits thousands of plant species from all over the world.

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

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

This hotel was the site of major events in sports and radio history. It was also used as a detention center during World War II.

Trimmed trees grow alongside the graves like topiary tombstones.

Island wonderland for communist autocrats.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

This memorial honors those who served on Gallops Island Radio Training Station during the second World War.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A beautiful Victorian-era cemetery, complete with a miniature village.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

A tiny monument to the classic American candy.

The world's largest piece of copyrighted artwork.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Radical Bookstore and Community Space.

The oldest playground in America.