An exquisite grouping of structures made from 10 tons of invasive saplings.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

This church houses the “incorrupt” body of its founding Bishop.

This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

Nearly 100 concrete graves lie hidden just beyond the pristine waters along the coast.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

One man's swirling six-acre monument of stone.

Every president in history is immortalized in bronze in downtown Rapid City.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

On Japan's Tashirojima Island, cats are king.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

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

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

One of the last doorless, continuously moving elevators still in use in the U.K.

An architect transformed this abandoned cement factory into his castle-like workshop.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

An ingenious Dutch land art project uses grass ridges to cut airport noise pollution in half.