Locals dubbed it the "Owl Building" because of its bird-like appearance.

A small structure built from used railroad ties honors the short term of America's 20th president.

Celebrating the greatest pugilists the world has ever known.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

A giant silver apple a day keeps the perils of capitalism away.

This 18th-century sundial was designed to calculate the date of Easter each year.

An unusual number plate signifies the building's saucy past.

The narrowest street in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

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

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

This glamorous old building is said to have inspired the Tower of Terror.

This weird abode has inspired everything from the "House on Haunted Hill" to a robot hunter's pad.

The blinking light atop the iconic landmark has been sending secret messages for decades.

The three biggest silent film stars once shot iconic scenes here.

The Hollywood home of Kermit the Frog and Yoda used to be Charlie Chaplin's film studio.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Eat a tasty meal in the house where John Steinbeck was born.