Hiding in plane sight.

This small stone building, the final work of a renowned artist, offers a peaceful environment with radiant, colorful glass windows .

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

A unique set of caves that spits waves back out into the ocean.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

An ode to one of the first concerts broadcast via satellite.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

A unique collection of Western and Japanese-style graves.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

The final residence of an educator, civil rights leader, and presidential advisor was also the first headquarters of the National Council of Negro Women.

This memorial honors five journalists who were killed in a mass shooting in 2018, and affirms the importance of the first amendment.

The "All-Seeing Eye of God" symbol on this library is a clue to one of the many former lives of this building.

Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

The first museum in the U.S. to address human rights issues in China.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

A whimsical, but often overlooked clock in Park Avenue.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

This translucent sculpture represents a quintessential component of New York City's skyline.

A whopping 14,000 copper coins cover this miniature fighter jet.

These figures float and flutter in this fountain crafted by famed Swedish sculptor Carl Milles.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

A monument marks the location of the first successful steamboat demonstration.

This general store is more than a century old and home to various oddities and antiques.