Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The tallest residential building in Africa is an unsettling Brutalist monolith.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

The United States Capitol's former columns still stand.

Two small chapels housed inside an ancient tree.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

The underground sanctuary of a mysterious ancient cult.

A spiral staircase twists to the top of this unusual Czech lookout tower.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A Spanish forest is filled with mysterious stone carvings.

A shrine of fire worship built on top of a natural flame.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

The extensive collection of an amateur naturalist.

A small flooded ghost town with a few scattered structures remaining.