An enormous natural sandstone bridge in Kentucky.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

A 70-foot replica of the famed Eiffel Tower.

In the hometown of the Grand Ole Opry star is a larger-than-life memorial statue made entirely from chicken wire.

A local scoured more than 1,000 acres for stone to create his masterpiece.

This huge clock made of flowers and simple machinery was once used a political weapon.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

This giant temperature attraction created some giant electric bills.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

These unusual houses look like giant boats that washed ashore on a residential street.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

The Giant Lemon of Lemon Grove.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

Could this grave be the true resting place of legendary gunfighter "Doc" Holliday? Unclear.

Bad farming practices caused this unnatural natural wonder.