Beautiful Victorian buildings from L.A.'s forgotten architectural past.

This rare tortoise skeleton has been hanging around the downtown Los Angeles museum for over a century.

The final resting place of a space program monolith.

60 feet of towering steel balances gracefully.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Sports history, made in the Arroyo Seco.

A repository of Pasadena history.

A small sculpture garden that provides a microcosmic representation of California.

Los Angeles's oldest cemetery allows visitors to trace the history of this proud city.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The world's largest piece of copyrighted artwork.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

Stolen goods adorn the organ at Old North Church.

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

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

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

Statue commemorating the use of ether in anesthesia.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

This landmark cemetery in Boston was created more than 300 years ago.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Two thousand artifacts from around the world collected by one woman who loved to travel.