Scores of vintage street lamps shine along L.A.’s Miracle Mile.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

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

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

This legendary urban waterfall creates a dazzling display of rainbows.

These ancient sacred grounds granted amnesty to those who managed to reach them.

This black shoreline is made up of exploded lava particles.

An important Mayan religious and trading center dating back to 200 BC.

In the Bahamas sits a lighthouse that is among the last of its kind.

A tropical paradise once home to space exploration and military installations.

Spain's largest bullring offers a unique glimpse at architecture and history.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

Its columns were all carved from the same white oak tree.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

An ancient octagonal weather station named for the eight Greek gods of wind.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This clifftop arch is a natural stunner.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.