The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A secret climbing tree hides along the side of a Costa Rican road.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

More than 700 species live within this murky marvel of a swamp on California's coast.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Tiki luxury on Nob Hill.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Towering basalt columns, a creation of fire and ice.

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

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Visit a replica of the estate where Aaron Burr allegedly plotted a treasonous scheme against the United States.

Two dozen pinball games hidden away inside a most unlikely location.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.