San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This private residence was the template for one of the most beloved television homes of all time.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The land is home to swimming ponies and a legendary 18th-century treasure.

This elaborate towering structure was once famed for its revolutionary height.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Yo, Adrian!

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Freddie Mercury's childhood home is now a monument to the iconic Queen rockstar.

Sitting atop a rock on Michamvi Pingwe beach, this restaurant becomes its own island at high tide.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A CT scan revealed the identity of this 3,000-year-old mummy that everyone erroneously thought was female.

This art center is way beyond your average pumpkin-carving operation.

Pluto is still considered a planet in Ithaca, New York.

The first piece of public art dedicated to LGBT rights.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

According to folklore, Vermont's slanted windows were installed to keep witches from flying into the house.