A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

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

This legendary urban waterfall creates a dazzling display of rainbows.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

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

Landmark dedicated to the plight of the American Indian in the 21st century.

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

The Real LegoLand.

Joseph and Victor Stanzel were Texas farm boys who built a model aircraft empire.

A miniature model of the iconic Stockholm department store.

A bronze statue of a low three-legged seat commemorates a piece of furniture that started a riot.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This public space is speckled with the eerie remnants of a defunct amusement park.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

An abandoned Indian-inspired mansion.

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

A road that winds through this natural cave is the only way to access the small, appropriately-named village of Cuevas.

A small church ornamented with medieval erotic sculptures.

An out-of-place grove of sequoias thrives in northern Spain.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

This museum documents the ancient practice of salt production in Figueira da Foz.