Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

In the Netherlands, one of the world's largest private car collections can be found.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A public urinal so pretty, it was declared a national monument.

The history and future of cannabis.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A unique work of automotive art calls this shopping center home.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A huge musical instrument played by the ocean.

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

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

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

Take a monster truck tour around an ostrich farm in the middle of the desert.

Stairs often replace streets on the steep slopes of this old mining town.

Limestone caves with spectacular showcase chambers.

America's only nuclear missile silo open to the public.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

The biggest solar telescope in the world helps reveal the secrets of our sun.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.