Granting the right of way to ships over surface traffic since 1917.

A sculptor's dream castle turned fantastical ruin.

A classically inspired temple in Redwood City.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

The restored and active Victorian-era final resting place of San Francisco.

Furniture tries to escape an abandoned building in San Francisco.

An automotive, farming machinery, and aviation museum located in Wetaskiwin, Alberta, Canada.

The curious underground history of keeping Paris clean.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

France's national museum of scientific and industrial instruments.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Notorious artist squat renovated into legal studios.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

The celebrated eyesore created by starry-eyed sweethearts.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Step back in time and witness the fall of Constantinople.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.