A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

The unusual patterns in this rock formation result from two distinct modes of weathering.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

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

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

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

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

This enormous World War II relic is one of the largest wooden structures in the world.

It would be a crime to miss it.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

One of the largest trees of its kind in California.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

One of the most easily accessible examples of the rare 1960s UFO houses.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This ancient Egyptian obelisk still bears the wounds of World War I.

The bronze uniforms commemorate the vital role of women during World War II.

A colorful square marks the heart of the city's LGBTQ community.

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

The colorful, smiling concrete silos of Vancouver.