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

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

The fifth-longest natural arch in the world, and the longest outside China.

The location where the iconic movie character declared it was time to go home.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Rippling sand dunes frozen in the Arizona rock.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

A tunnel with windows, so you don't miss out on the impressive views.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Before 1993, this historic-looking village—King Charles III's pet project—didn’t exist at all.

Possibly the world's largest coin stands just outside of a Canadian science center.

Little island known for its massive beachfront "flowerpot" pillars.

This natural sea cave hides a small wonderland of natural turquoise beauty.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

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

This 1967 experiment in modular architecture was designed to be a new model for urban living.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

This natural wonder is disappearing at an alarming rate.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.