The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

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

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

What is the Thing?

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A failed piece of Orientalism has become the proud symbol of a community.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

A reminder to choose water over wine since 1888.

Celebrating the greatest pugilists the world has ever known.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Two small markers remember the Alamo's feline protectors.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

A massive Montreal stadium that has seen nothing but trouble since its inception.