A six-story-tall golden pyramid, surrounded by a moat.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A science teacher's dream.

This shop for all your super spy needs hides an educational secret.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

A hidden grotto on the grounds of the Kane County Government Center.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The eccentric mansion of one the most popular horror authors of modern times.

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

Exact replica of the ancient monument, but much, much lighter.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Exotic feline breeding compound and conservation center.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Towering basalt columns, a creation of fire and ice.