One of America's first dinosaur parks gives a window into Depression-era paleontology.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A fitting attraction for the corn capital of the world.

An experimental, automotive replica of Stonehenge.

Roaming bison and a spectacular view at the highest point in Nebraska.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Home to the deepest rift anywhere on Earth.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Final resting place of one of the classic authors of horror literature.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

Fake rail crossings mark the site of an influential doctor's demise.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

This massive redwood tree has a hole in the base big enough to drive through.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The biggest solar telescope in the world helps reveal the secrets of our sun.