An abandoned lighthouse off the beaten path, one of the few surviving pre-World War II Japanese structures, offers a beautiful view.

This abandoned radar site is slowly being taken back by the jungle, its mission cut short by the end of the Cold War.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A derelict bit of transportation infrastructure hidden in the woods.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

An eight-sided home built during a brief octagon craze in the 1850s.

An Industrial Revolution-era public work that purified water using nothing but sand.

These abandoned waterworks are crumbling into the Potomac River.

The span is crooked and made from two older recycled bridges.

An abandoned Depression-era zoo hidden just off the highway.

A mammoth pair of Civil War artillery guns abandoned out in the forest.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

This forgotten boat elevator was an engineering marvel in its heyday.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

An unrealized Taoist palace left abandoned in a Houston suburb.

An overgrown garden stands as a grim marker of an unrealized dream.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.