Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A spiritual vortex among the red rocks in Sedona.

Monument to the cotton-destroying boll weevil.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Steepest flood safety railway in the entire world.

Memorializing an American tragedy of massive proportions.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Watch the newest land on the planet form before your eyes.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

A giant Troll lurks under one of Seattle's oldest bridges.

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.

This working class sculpture pounds his hammer all the livelong day.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

The ancient tomb acts as a calendar that keeps perfect time.

This ancient Irish tower could easily have stood in for Rapunzel's prison.