Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The United States Capitol's former columns still stand.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

A mammoth pair of Civil War artillery guns abandoned out in the forest.

Come for the flowers, stay for the bats!

Famously misunderstood wonder of the ancient world

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Climb to the top of the world's largest seated bronze Buddha.