A futuristic-looking beach house built for the owner of a snack food brand.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

There aren't too many operational funiculars around, but Pittsburgh has two!

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

World's largest collection of serial killer artwork and other macabre exhibits.

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.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

One man's homage to the sun continues to grow like a glass fractal.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

Sojourn to the past at this residence teeming with 1950s memorabilia.

At this local mall, visitors are ushered through a 1940s jail exhibit.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

An inconspicuous footbridge beloved by San Diego locals.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

A large sculptural artwork and garden in Escondido, California.

The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

An off-grid art installation that encourages its visitors to imagine a world without waste.

A hand-built folk art installation covered with messages of God's love.