Secret hideaway for an alternative beach experience.

Eight "Guardians of Health" protect this art deco water tower from pollutants and bacteria.

A hidden oasis in the heart of Minneapolis is also an Important Bird Area.

Direct, creative challenge to Mother Nature's winter wrath.

This ancient theater was once the home of fierce gladiatorial battles.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

According to local folklore, this Roman sepulcher was once a throne for the Devil.

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

This splendid mosaic embodies ancient Rome's fascination with the exotic allure of Egypt.

The city of Palestrina was built around this magnificent terraced sanctuary dedicated to the pagan goddess Fortuna.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

Victorian "Fancy Craft" Hair Wreaths and Relics.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

The oldest continuously occupied public building in the United States.

A serene garden path lined with 36 haiku stamped into clay stones.

A sprawling collection of over 106,000 toys from around the world.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.