This stone memorial pays tribute to a massive shipwreck which was sadly overshadowed by the death of John Wilkes Booth.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

An old train trestle re-imagined as an Egyptian obelisk.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

The world's largest fire hydrant is supposedly tornado-proof.

A dazzling display of lights and crystals.

Elvis's own personal tropical hideaway.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

A home designed to be on the cutting edge of comfortable, low-cost living.

The 10-foot-tall vegetables belong to Michigan’s first food rescue program.

A mysterious castle built as a monument to lost love.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Austin’s local mountain isn’t really a mountain at all.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

A piece of outsider public art accompanied by a strange urban legend.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.