This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

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

Outsider art meets paleontology at this roadside reptile repository.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This unconventional used book store was once in the news for the surprising act of burning books.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

A piece of John the Baptist in the American heartland.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

Hundreds of protractors affixed to surfaces all over the city.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

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

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

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.

This historic early-20th-century building still boasts some of its original features.

Also known as the Cathedral of the Plains, this church holds the distinction of being one of the "8 Wonders of Kansas."

A unique blue and yellow phone booth in America's "Little Sweden."

This artsy public restroom is shaped like a giant john.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

A diverse, expansive nature preserve in northeastern Kansas.