Step inside Lucy, the world's largest "elephant."

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

A rare view of a preserved Victorian science museum.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Arlington Cemetery exhibit dedicated to death and grieving.

This might just be the TARDIS of bookstores.

A museum dedicated exclusively to aircraft used in the military.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

The home of pigs, snakes, chameleons, and the alleged largest bunny in the United States.

The Decoy Capital of the World.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

A folk art mecca famous among outsider art fans.

One tiny triangular park commemorates the victims of a yellow fever epidemic—many of whom are buried right below the grass.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

There are more than 4 million bricks inside this unofficial Lego museum in a former middle school.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The United States' oldest Episcopal church still in active use.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

An astounding collection of medical specimens, including bits of President Lincoln.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

Hear, smell, see, taste, and touch history at this immersive Civil War hospital.

The humble horn finally finds a place in the sun.

For nearly a year, General Ulysses S. Grant was based here during the American Civil War.