More than a century of radio history is told in these displays.

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

This stunning Connecticut mansion is actually just a one-room-deep hoax.

Surrounded by lonely toys, this Massachusetts gravestone marks the final resting place of six children who were murdered by poverty.

Site of the graveyard vine believed to be a curse on a family from the 1800s.

A rock outcropping left by a glacier that made itself useful throughout the centuries.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

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

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

The whole world in one water tank.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

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

This recreation of a 19th-century dime museum is full of oddities.