This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

The best place in the park to test out your throwing arm.

A monumental cross hides in the trees in Golden Gate Park.

Only hotel where you can legally launder money.

Radioactivity still cause for concern at this urban explorer's paradise.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

Russian history in San Francisco.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

An artsy hidden staircase leads to breathtaking views of San Francisco.

This extensive collection covers thousands of years of Polish military history.

Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

Once where royalty entertained guests, this opulent table is now one of the longest in the world.

A burial vault located under Tiber Island in the middle of the Italian capital.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.