This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

The family compound and final resting place for the philosopher, Confucius, and over 100,000 of his descendants.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

Over 600 acres of idyllic open grassland honor Nebraska’s georgic storyteller.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

Statue commemorating the use of ether in anesthesia.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A men’s restroom became a sandwich shop.

The Boston square dedicated to the dark poet who was born nearby.

The Swedish flag over this small naval fort signals that the nation is at peace.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

An enormous image of Utah's salt flats made entirely from tape.

Amazingly detailed marble cinerary urns that once held the cremains of Roman elite.