This private residence was the template for one of the most beloved television homes of all time.

A monument to the love people have for their pets.

Visible below the waves are memorials to the city's Gold Rush dead.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

This shop specializes in oddities and Victorian-inspired wonders.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

This bridge is haunted by the ghost of a distraught mother.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

The only arched bridge made of stone on the entire Mississippi River.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

This massive roadside mascot was the first version of the giant to illustrate his butt.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Ever wanted to can Spam?

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Yo, Adrian!

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."