View the California coastline (and the home of Barbara Streisand) inch by inch with stunning, government-sanctioned aerial photography.

Quite simply the largest tree in the world (by volume).

The prototype for all Nazi concentration camps.

Ancient serpentine sacrifice holder that has stood the test of time.

The ancient latrines of the Greeks, in all their public glory.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The celebrated eyesore created by starry-eyed sweethearts.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

Hindu temple of the dead home to hundreds of long-tailed macaques.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Oldest building in California still in use.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

World War II-era Nazi compound nestled in the Santa Monica hills.

Megachurch turned Catholic church comprised of 10,000 glass panes.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Astronomical observatory above Lake Titicaca.

What was once a unique system of urban elevators is turning into a mechanical ruin.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.