This sparsely populated town offers a look back in time.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

This marker identifies the location where three states converge.

A hotel with a rich Wild West history of miners and bootleggers.

This sidewalk tribute honors Colorado's great culinary creation.

Metal water storage tank turned ethereal concert hall.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

This iconic science fiction house still looks like something from the future.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This fully restored synagogue explores the American Jewish experience along the old frontier.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

In Grand Rapids, Michigan, a marker honors the creation story of a proud fictional culture.

The site where Michigan launched its first rocket into space lies abandoned in the dense woods along Lake Superior.

World's largest Christmas store.

The last intact steam engine factory in the United States.

Bizarre and inspired combination store selling only two items: tires and bibles.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

This bridge is haunted by the ghost of a distraught mother.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

A small structure built from used railroad ties honors the short term of America's 20th president.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

Where the embers of the Big Bang were first detected.