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

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A massive Montreal stadium that has seen nothing but trouble since its inception.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A multi-storied adobe complex has been inhabited for more than a thousand years.

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

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A geological mystery on Camelback Mountain.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

When ecosystems collide in the arid Southwest.

Experience a charming 1930s version of "infotainment."

World's largest Christmas store.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

"We Seceded Where Others Failed."

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Quite simply the largest tree in the world (by volume).

The only arched bridge made of stone on the entire Mississippi River.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

World-famous, Pink's still manages to keep its prized cult fetish status.