If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Rock face that shares a name with Mary Shelley's famous doctor.

The American Home, Re-imagined.

Two groundbreaking brothers from Pasadena.

A large sculptural artwork and garden in Escondido, California.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

North America's largest accredited model railroad museum.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

Some of the most unusual (and in some cases, disgusting) flavors of soda imaginable.

One of Hollywood’s favorite government buildings.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

One woman's Viking Castle on Lake Tahoe.

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

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

This impressive Boston holy house is the American mecca for Christian scientists.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

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

Beautiful steampunk ghosts of early Massachusetts.