A large AIDS Memorial Pathway art installation provides a moment for quiet contemplation in this public park.

"Holy Wisdom" overlooks the city that became its namesake.

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

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

These six walrus head statues harken back to a time when this area wasn't far from the oceanfront.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

This monumental intersection commemorates the day Okinawa switched to driving on the left.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Try the frozen treat that inspired Arrested Development's famous banana stand.

Old submarine parts have been converted into faux whale fins.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Just a man taking his prehistoric pet for a stroll.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.