This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A speakeasy takes on Chicago's drinking culture.

Location of the Real World's disastrous, and protested, eleventh season.

Huge abstract sculptures of the Puerto Rican Flag.

A lush green oasis in the middle of Chicago.

An enormous park-like oasis, full of famous Chicagoans' graves.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

An antiquated German apothecary on Chicago's North Side.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

A mini Wrigley Field for mini baseball players.

A bizarre house filled with an astounding array of collections.

This cave holds a surprisingly colorful variety of geological oddities.

A historic presidential getaway on the continental United States' southernmost island.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This sandstone mansion was the home of two of Oregon's most important pioneers.

An outlandish shoe shaped house built by an eccentric millionaire.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Resting place of Hollywood's immortals is also site of summer film screenings.