Pennsylvania's own Roswell-style UFO mystery.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A marvel of Byzantine engineering under the streets of Istanbul.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

An ancient city exhumed from the depths of the ocean.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

The world's most remote memorial to the victims of the UTA Flight 772 disaster.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

A natural gas leak provides a flickering flame beneath a waterfall.

New York City's only preserved family home from the 19th century.

A pub that is literally in the middle of nowhere, but continues to do business.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The USSR’s Conquest of Nature lead to the domestication of many moose—no squirrel.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

An idle pastime becomes a record holder in Boys Town, Nebraska.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.