A much-maligned monument to teetotalism.

Largest Roman Catholic church in North America.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

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

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

Before Nixon, "watergate" meant canals.

This one-room schoolhouse in rural Arkansas dates to the 1920s, but looks like it could be the 1820s.

A fountain standing as a testament to a doomed alliance.

1513 Turkish world map, full of European state secrets and snarky commentary.

A marvel of Byzantine engineering under the streets of Istanbul.

An artist's cute bronze subway sculptures belie his violent artistic past.

In the early 1800s, surgery was also a show.

World's first "penitentiary," meant to be humane, drove men insane.

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

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Walk the whole Mississippi River!

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

The United States Capitol's former columns still stand.