Massive prehistoric mammals used these stones as oversized scratching posts.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

A bypass decorated with large wooden troll carvings.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

This remote island in Iowa was abandoned after being devastated by flood.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

Two small markers remember the Alamo's feline protectors.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

A brick-paved former section of the historic coast-to-coast highway.

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.

This 40-foot fowl marks the so-called "wild goose capital of the world."

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

This state park was once an important Native American cermonial center.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Mariners once used this prehistoric landfill as a navigational landmark.

A genuine Tudor manor transported piece by piece from England.

One of the best examples of Art Deco architecture in the United States.