Ancient pueblos built into the base of a natural canyon wall.

This blowhole is supposedly caused by a trapped monster.

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

Bizarre and inspired combination store selling only two items: tires and bibles.

A motel dedicated to Southwestern nostalgia.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

The resting place of a Civil War celebrity's amputated limb.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

These massive mitts are made of 30 tons of devotional bronze.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

A piece of John the Baptist in the American heartland.

This giant green head remembers one of America's jazz giants.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This Wild West attraction is alive with glitching automatons.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

Burial site more than 300 years old.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."