A monument celebrating the idea of reaching inaccessible places.

Located within a historic park, the beacon is the oldest standing structure in Miami.

A community of collapsing homes more than a mile out from the Florida coast.

This replica of the Greek structure is in the heart of Nashville.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

A former major munitions plant that has been converted into a sprawling art space.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This beautifully deceptive waterfall is something far different from what it appears to be.

The stoutest tree in the world.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

Frida Kahlo's childhood home, now a museum of her life and works.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Vibrant street art created with mixed media.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.