Inside the world's largest seed bank, WWII botanists elected to starve to death rather than compromise their collection.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

A medieval setting reimagined into a unique art alley.

Hidden above a drug store on a nondescript corner of Lincoln Heights is a private clubhouse for intrepid explorers.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

A vast array of tropical plants collected by a vacationing couple.

A different kind of swan princess.

An unassuming corner inside downtown Orlando's library offers a whole new world of the park and its history.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

A fitting attraction for the corn capital of the world.

The only museum and archive west of the Mississippi that is dedicated to the study of Abraham Lincoln.

An optical illusion found amid a logged redwood forest.

This massive redwood tree has a hole in the base big enough to drive through.

Experience Larry Spring's self-taught "common sense" laws of physics.

A trash dump made beautiful by nature's power.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

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

The lead horse on a Disneyland merry-go-round that is older than the park itself.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

A family agreed to sell their property to Disney on the condition that this tree, planted as a wedding gift, would not be removed.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Oldest building in California still in use.