Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

A wall of chewing gum moonlights as collective art.

Couple's personal collection of pinball machines turned public pinball museum.

A museum dedicated to the history and exploration of both popular music and science fiction.

This pun was simply waiting to come to life, and one defense contractor made it so.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

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

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Continuing the tradition of the dime museum in style.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

The only recreation of William Shakespeare's indoor playhouse.

This historic mansion was built as a symbol of love between a husband and wife.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

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