A wax effigy of St. Valentine hides one of the saint's relics.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

This is not your typical jungle gym.

Less a museum than a bizarre fantasy world created by artists and engineers.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Go inside to really appreciate this 500-year-old technological masterpiece.

2300-year-old Roman road connecting the empire.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

An ancient knight and a symbol of the city's freedom.

Christ's blood preserved in a Belgian town.

A 220-foot deep watery drop-off, filled with marine life.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.