While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

Lie in a hammock where George Washington stood.

A bit of retro transportation flair preserved in the world's largest department store.

The so-called "Statue of Liberty of Los Angeles" is on a one mutant mission to keep L.A. weird.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

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

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

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

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

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

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Mysterious 500-year-old tapestries depict a unicorn hunt.

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

World-famous, Pink's still manages to keep its prized cult fetish status.