The site of the deadly Triangle Shirtwaist Factory Fire.

Avoid gangster interaction while window-shopping.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

There must be a pun in this haystack somewhere...

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

Magical-looking cottages that inspired one of the most famous animated films ever.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

Most famous work of one of Frank Lloyd Wright's sons.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Historic funicular railway, believed to be the shortest railroad in the world.

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