Peace Park and the Atomic Bomb Dome.

An eerie reminder to the horrors of World War II.

This Japanese national treasure was originally built in 593.

One of the best absinthe distilleries in the United States.

This giant shopping mall still holds signs of its automotive past.

One of the largest Marian shrines on the West Coast stands rather unexpectedly in Silicon Valley.

A 1920s speakeasy that had rum runners racing up and down the shores of California.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

A seaside town with no sea in sight.

A massive volcanic plug is now a protected area that hosts a number of bird species.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

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

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

Five candy-colored villages on the Italian Riviera.

The most beautiful Taco Bell in the world even has surfboard parking.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.