This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

Get up close to emus and ostriches, or buy their tasty meat.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The only free-standing, vertical sundial in the US was keeping standard time before it was even invented.

This eagle-topped spire remembers the military commander who snatched up California for the United States.

A tree grown from astronaut seeds which were exposed to cosmic rays.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

A priceless collection of the Nation's cryptologic history.

A real flying saucer, contracted by the U.S. Air Force.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Behemoth, cannon-like telescope operated by generations of Irish earls.

A beautiful but toxic fountain of mercury.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

It's not your typical library, memorial, or book store.