There aren't too many operational funiculars around, but Pittsburgh has two!

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

A celebrity from the late Cretaceous period.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

Decades before the scandal, this staircase on the river was a literal "water gate."

This unique historical monument features large concrete spheres designed to resemble fallen stars.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

A derelict bit of transportation infrastructure hidden in the woods.

At 207 feet, one of the world's longest continuous escalators.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Before Nixon, "watergate" meant canals.

A much-maligned monument to teetotalism.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.