The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A beautiful but toxic fountain of mercury.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

Saintly bones pressed into a wax effigy of a Catholic superstar.

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

Egyptian Revival movie palace abandoned for decades and restored in 2013.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

Obelisks and stone pineapples in the Irish countryside.

The ancient tomb acts as a calendar that keeps perfect time.

The television series' iconic giant foot was borrowed from this classical painting.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The oldest standing structure in downtown San Diego.

Lemon Grove, California is known for its giant lemon...and mummified bodies.