Beatlemania is still going strong... at least in Kazakhstan.

Orcas on display and in the water.

On the edge of this small Washington Park, a piece of the Earth's mantle has come to the surface.

This dilapidated ship carcass covered in trees is a striking sight.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

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 masterpiece in Golden Gate Park by virtue of the artist’s debt.

Pennsylvania's own Roswell-style UFO mystery.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

The trials and tribulations of marking Poe's grave.

Baltimore's first skyscraper may be home to the inspiration behind pulp fiction's most celebrated bird.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Once America's tallest structure, now a Baltimore landmark.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

This historic building is now home to the Public Access Corporation for the District of Columbia.

Largest Roman Catholic church in North America.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

An obscure federal monument honors the French diplomat who served as Ambassador to the U.S. during WWI.

A clone of a cloned tree that was so important it allegedly had its own guards.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.